{"back a bill":{"translation":"在票据的背面签字","word":"back a bill"},"back a check":{"translation":"[经] 背书支票","word":"back a check"},"back against the wall":{"translation":"背山面水,山穷水尽,背水一战,危机四伏","word":"back against the wall"},"back alley":{"phonetic":"bæk ˈæli","translation":"单打端线和双打端线之间的长地带","word":"back alley"},"back ampere turns":{"translation":"[电] 反安匝数","word":"back ampere turns"},"back and belly":{"translation":"背与腹, 衣食","word":"back and belly"},"back and edge":{"translation":"完全,总共;全力以赴","word":"back and edge"},"back and fill":{"translation":"前进时帆忽张忽缩, 出尔反尔","word":"back and fill"},"back and forth":{"translation":"来回地","word":"back and forth"},"back and forward":{"translation":"同上条","word":"back and forward"},"back answers":{"translation":"不留情面的尖锐答复","word":"back answers"},"back arc":{"translation":"[电] 回弧","word":"back arc"},"back at square one":{"translation":"[口]回到原来的起点;回复原状","word":"back at square one"},"back away":{"translation":"逐渐后退","word":"back away"},"back away from":{"translation":"从…躲开","word":"back away from"},"back bacon":{"translation":"= Canadian bacon","word":"back bacon"},"back bench":{"translation":"（英国下院及其他某些国家议会的）后座议员席, 普通议员席","word":"back bench"},"back bencher":{"translation":"[法] 后座议员","word":"back bencher"},"back bias":{"translation":"[电] 反偏压","word":"back bias"},"back boarding":{"translation":"[化] 搓软; 皮革搓软","word":"back boarding"},"back bond":{"translation":"[经] 反担保, 退还担保","word":"back bond"},"back bonding":{"translation":"[化] 反馈键","word":"back bonding"},"back bone":{"translation":"[医] 脊柱","word":"back bone"},"back boundary cell":{"translation":"[电] 后膜光电管","word":"back boundary cell"},"back brace":{"phonetic":"bæk breis","translation":"后撑","word":"back brace"},"back breaker":{"phonetic":"'bæk,breɪkə","translation":"n. 艰苦的工作；工作勤奋的人","word":"back breaker"},"back burner":{"translation":"保留之物;在制作中","word":"back burner"},"back catalogue":{"phonetic":"bæk ˈkætəlɔɡ","translation":"n. （歌手等的）以往歌曲目录, 过往作品","word":"back catalogue"},"back channel":{"phonetic":"bæk ˈtʃænl","translation":"[计]反向信道","word":"back channel"},"back character":{"translation":"[计] 退格控制字符","word":"back character"},"back charge":{"translation":"[经] 决算后各种费用","word":"back charge"},"back charges":{"translation":"入帐后所加之价","word":"back charges"},"back chipping":{"translation":"[化] 铲焊根; 背面錾平","word":"back chipping"},"back circle":{"translation":"[网络] 向后画圆","word":"back circle"},"back coat":{"phonetic":"bæk kəut","translation":"底面涂层","word":"back coat"},"back connection":{"translation":"[电] 背部接线","word":"back connection"},"back contact":{"translation":"[电] 后部触点","word":"back contact"},"back contact spring":{"translation":"[电] 静触簧","word":"back contact spring"},"back coordination":{"translation":"[化] 反馈配位","word":"back coordination"},"back copy":{"translation":"= back issue","word":"back copy"},"back country":{"phonetic":"bæk ˈkʌntri","translation":"穷乡僻壤","word":"back country"},"back coupling":{"translation":"[电] 反耦合","word":"back coupling"},"back course":{"translation":"反航线; [水运] 反向航道; 反方向","word":"back course"},"back cover":{"phonetic":"bæk ˈkʌvə","translation":"后壳，后罩","word":"back cover"},"back current":{"translation":"[电] 反向电流","word":"back current"},"back dating":{"translation":"[经] 倒填日期","word":"back dating"},"back diffusion":{"translation":"[电] 逆扩散","word":"back diffusion"},"back diode":{"translation":"[电] 反集极体","word":"back diode"},"back discharge":{"translation":"[电] 反向放电","word":"back discharge"},"back dive":{"phonetic":"bæk daiv","translation":"n. [体]向后跳水","word":"back dive"},"back dividend":{"translation":"[经] 拖欠的股利, 未付股利","word":"back dividend"},"back donating bonding":{"translation":"[化] 反馈键","word":"back donating bonding"},"back donation":{"translation":"[化] 反馈作用","word":"back donation"},"back door":{"definition":"A door in the back part of a building; hence, an indirect\n   way.","translation":"后门, 秘密途径\n[经] \"后门\"","word":"back door"},"back door selling":{"translation":"[经] 后门销售","word":"back door selling"},"back down":{"translation":"放弃要求, 取消前言","word":"back down"},"back draft":{"translation":"[机] 反斜度","word":"back draft"},"back duty":{"translation":"[经] 未缴的税(捐)款, 拖欠税捐","word":"back duty"},"back e.m.f cell":{"translation":"[电] 反电动势电池","word":"back e.m.f cell"},"back echo":{"translation":"[电] 反回波","word":"back echo"},"back echo reflection":{"translation":"[电] 障碍物波反射","word":"back echo reflection"},"back edge":{"translation":"[计] 逆边","word":"back edge"},"back elector-motive force":{"translation":"[电] 反电动势","word":"back elector-motive force"},"back electromotive force":{"translation":"[化] 反电动势\n[医] 反电动势","word":"back electromotive force"},"back elevation":{"translation":"[计] 反高图, 背视图","word":"back elevation"},"back emission":{"translation":"[电] 反放射","word":"back emission"},"back end":{"translation":"后端\n[化] 后段","word":"back end"},"back entrance":{"phonetic":"bæk ˈentrəns","translation":"后门，后门入口","word":"back entrance"},"back exercise":{"translation":"[网络] 背部运动","word":"back exercise"},"back face":{"translation":"[化] 后端面","word":"back face"},"back fall":{"translation":"[机] 山坡","word":"back fall"},"back feed factor":{"translation":"[电] 反馈因数","word":"back feed factor"},"back feed phase":{"translation":"[电] 反馈相位","word":"back feed phase"},"back fire":{"translation":"[化] 回火; 逆火","word":"back fire"},"back fire arrester":{"translation":"[机] 回火制止器","word":"back fire arrester"},"back flash":{"translation":"[机] 反闪","word":"back flash"},"back flip":{"translation":"倒翻斤斗","word":"back flip"},"back flow":{"translation":"[化] 回流; 倒流; 开模缩裂","word":"back flow"},"back flushing":{"translation":"[化] 反洗; 逆流洗涤; 反吹","word":"back flushing"},"back focal length":{"translation":"[计] 后焦距","word":"back focal length"},"back formation":{"translation":"逆成法","word":"back formation"},"back freight":{"translation":"[经] 退货运费","word":"back freight"},"back from":{"translation":"远离,在…的远处","word":"back from"},"back gear":{"translation":"[机] 后倒齿轮","word":"back gear"},"back goods freight":{"translation":"[经] 退货费用","word":"back goods freight"},"back ground":{"translation":"[经] 背景","word":"back ground"},"back haul":{"translation":"[计] 空载传输, 回送","word":"back haul"},"back head brace angle":{"translation":"[机] 外门板撑杆角铁","word":"back head brace angle"},"back impeller":{"translation":"[化] 后弯叶轮; 后弯式叶轮","word":"back impeller"},"back in":{"translation":"无意中获得,偶然取得","word":"back in"},"back injury":{"translation":"[医] 背部损伤","word":"back injury"},"back into":{"phonetic":"bæk ˈɪntuː","translation":"（使）倒进…","word":"back into"},"back issue":{"phonetic":"bæk ˈisju:","translation":"n. 过期刊物","word":"back issue"},"back judge":{"phonetic":"bæk dʒʌdʒ","translation":"[体]后方裁判员","word":"back judge"},"back knee":{"translation":"[医] 膝反屈, 翻膝","word":"back knee"},"back knotter":{"translation":"[化] 尾筛","word":"back knotter"},"back lands":{"translation":"边远地区,穷乡僻壤","word":"back lands"},"back lash":{"translation":"[化] 间隙; 齿隙; 丝隙","word":"back lash"},"back letter":{"translation":"[经] 退回信件","word":"back letter"},"back lift":{"translation":"[医] 背对背负法","word":"back Lift"},"back light":{"translation":"[电] 背面光","word":"back light"},"back lighting":{"translation":"[电] 背景照明","word":"back lighting"},"back link":{"translation":"[计] 回指连接","word":"back link"},"back loading":{"translation":"[经] 退装货物","word":"back loading"},"back lobe":{"translation":"[电] 反瓣","word":"back lobe"},"back lock":{"translation":"[电] 反位锁","word":"back lock"},"back matter":{"translation":"书后所附补充资料","word":"back matter"},"back migration":{"translation":"[化] 反迁移","word":"back migration"},"back mixing":{"translation":"[机] 逆混","word":"back mixing"},"back mutation":{"phonetic":"bæk mju:ˈteɪʃən","translation":"回复突变","word":"back mutation"},"back number":{"translation":"过期的刊物,旧期刊,过时的人或物","word":"back number"},"back oars":{"translation":"掉转方向,改变主意","word":"back oars"},"back of":{"translation":"在…后面;在…以前;是…的起因","word":"back of"},"back of a book":{"translation":"书背,书嵴","word":"back of a book"},"back of beyond":{"translation":"遥远的地方","word":"back of beyond"},"back of weld":{"translation":"[化] 焊缝背面","word":"back of weld"},"back off":{"translation":"后退","word":"back off"},"back office":{"translation":"[经] 事务部门, 后勤部门","word":"back office"},"back on":{"translation":"背向","word":"back on"},"back on to":{"translation":"背对着;与…相连","word":"back on to"},"back order":{"translation":"暂时无法满足的订货\n[经] 拖欠定货, 暂时无法满足的订货","word":"back order"},"back order memo":{"translation":"[经] 延期交货通知单","word":"back order memo"},"back out":{"translation":"停止不干, 食言\n[法] 收回, 不再担保, 不承认","word":"back out"},"back out of":{"translation":"退出,不履行","word":"back out of"},"back overdraft":{"translation":"[法] 银行透支","word":"back overdraft"},"back pack":{"phonetic":"bæk pæk","translation":"背包","word":"back pack"},"back panel":{"translation":"[计] 底板","word":"back panel"},"back passage":{"phonetic":"bæk ˈpæsidʒ","translation":"n. 直肠","word":"back passage"},"back patching":{"translation":"[计] 回插, 回填","word":"back patching"},"back pay":{"translation":"[经] 欠付工资","word":"back pay"},"back pitch":{"translation":"[电] 后节距","word":"back pitch"},"back plate molding":{"translation":"[机] 背板衬砂造模法","word":"back plate molding"},"back porch":{"translation":"[计] 后背区, 后沿","word":"back porch"},"back premises":{"translation":"后院","word":"back premises"},"back pressure":{"translation":"[医] 反压, 回压","word":"back pressure"},"back pressure effect":{"translation":"[医] 反压效应","word":"back pressure effect"},"back pressure evaporator":{"translation":"[化] 背压式蒸发器","word":"back pressure evaporator"},"back pressure turbine":{"translation":"[化] 背压式汽轮机; 背压式涡轮机; 背压透平","word":"back pressure turbine"},"back projection":{"translation":"[计] 反投影, 向后投影","word":"back projection"},"back purge":{"translation":"[化] 反冲","word":"back purge"},"back rake angle":{"translation":"[机] 后斜角","word":"back rake angle"},"back relation":{"translation":"[法] 追溯","word":"back relation"},"back rent":{"translation":"[经] 欠租","word":"back rent"},"back resistance":{"translation":"[电] 反向电阻","word":"back resistance"},"back rest":{"translation":"[医] 床靠背, 背靠","word":"back rest"},"back road":{"translation":"偏僻的乡间道路","word":"back road"},"back room":{"translation":"里屋, 密室","word":"back room"},"back run":{"translation":"[机] 逆行","word":"back run"},"back running":{"translation":"[化] 封底焊","word":"back running"},"back salary":{"translation":"[经] 欠薪","word":"back salary"},"back saw":{"phonetic":"bæk sɔ:","translation":"镶边手锯","word":"back saw"},"back scatter":{"translation":"[医] 反向散射","word":"back scatter"},"back scatter constant":{"translation":"[医] 反向散射常数","word":"back scatter constant"},"back scattering":{"translation":"[化] 反向散射; 背散射","word":"back scattering"},"back scattering coefficient":{"translation":"[电] 反向散射系数","word":"back scattering coefficient"},"back seat":{"translation":"后座,次要地位,默默无闻的地位","word":"back seat"},"back seat driver":{"translation":"幕后指挥,喧宾夺主者,多管闲事的人","word":"back seat driver"},"back shooting":{"translation":"[化] 回程爆炸","word":"back shooting"},"back side":{"phonetic":"bæk said","translation":"里面; 内层; 背面; 反面","word":"back side"},"back sinew":{"translation":"[医] 背侧腱, 腿后腱","word":"back sinew"},"back slang":{"translation":"倒拼隐语","word":"back slang"},"back slums":{"translation":"贫民窟","word":"back slums"},"back source":{"translation":"[电] 后备电源","word":"back source"},"back spectacle":{"translation":"[电] 里眼镜","word":"back spectacle"},"back splint":{"translation":"[医] 背夹","word":"back splint"},"back spread":{"translation":"[经] 缩差","word":"back spread"},"back strain effect":{"translation":"[化] 反应变效应","word":"back strain effect"},"back street":{"translation":"背街,后街","word":"back street"},"back striking":{"translation":"[机] 回击","word":"back striking"},"back stroke":{"translation":"[医] 反击, 反冲","word":"back stroke"},"back substitution":{"translation":"[计] 倒转代换","word":"back substitution"},"back surface":{"translation":"[化] 底面","word":"back surface"},"back sweetening":{"translation":"[机] 反脱臭","word":"back sweetening"},"back swing":{"translation":"[化] 回程","word":"back swing"},"back tabulation":{"translation":"[计] 反向制表","word":"back tabulation"},"back tail lever":{"translation":"[电] 尾杆","word":"back tail lever"},"back talk":{"translation":"回嘴,顶嘴,还口","word":"back talk"},"back taper":{"translation":"[机] 倒推拔6","word":"back taper"},"back tax":{"translation":"[经] 退税, 拖欠税款","word":"back tax"},"back teeth":{"translation":"[医] 后牙, 磨牙","word":"back teeth"},"back tender":{"translation":"[机] 机背看守工","word":"back tender"},"back tendon":{"translation":"[医] 腿后腱(四足类胫骨后面的腱)","word":"back tendon"},"back the sails":{"translation":"调整船帆使船倒退","word":"back the sails"},"back the wrong horse":{"translation":"下错赌注","word":"back the wrong horse"},"back titration":{"translation":"[化] 返滴定; 返滴定法","word":"back titration"},"back to":{"translation":"后退到\n回到","word":"back to"},"back to back":{"translation":"背靠背, 一前一后","word":"back to back"},"back to back credit":{"translation":"[经] 对开信用证书, 转开信用证书","word":"back to back credit"},"back to back escrow":{"translation":"[法] 背对背契据","word":"back to back escrow"},"back to front":{"translation":"前后倒置","word":"back to front"},"back to square one":{"translation":"回到起始状态","word":"back to square one"},"back to the salt mines":{"translation":"重回工作岗位,重操旧业,又要辛苦了","word":"back to the salt mines"},"back to the wall":{"translation":"背山面水,山穷水尽,背水一战,危机四伏","word":"back to the wall"},"back tooth":{"translation":"[网络] 后臼齿；后齿","word":"back tooth"},"back up":{"translation":"支持, 倒退, 给...装上背衬","word":"back up"},"back up power":{"translation":"[化] 备用电源","word":"back up power"},"back value":{"translation":"[经] 倒帐","word":"back value"},"back veneer":{"translation":"[化] (胶合板之)里板","word":"back veneer"},"back view":{"translation":"[计] 后视图\n[化] 后视图","word":"back view"},"back ward leaning vane":{"translation":"[化] 后弯叶片","word":"back ward leaning vane"},"back ward-curved blade":{"translation":"[化] 后弯叶片","word":"back ward-curved blade"},"back wash valve":{"translation":"[化] 逆洗阀","word":"back wash valve"},"back washing":{"translation":"[化] 回洗; 回洗法","word":"back washing"},"back water":{"translation":"令划手划倒桨\n[化] 回水","word":"back water"},"back water curve":{"translation":"[化] 壅水曲线","word":"back water curve"},"back water pump":{"translation":"[化] 回水泵","word":"back water pump"},"back wave":{"translation":"[电] 反波","word":"back wave"},"back weld":{"translation":"[化] 封底焊道","word":"back weld"},"back welding":{"translation":"[化] 封底焊","word":"back welding"},"back wire":{"translation":"[电] 后部接线","word":"back wire"}}