查询词典 pumping-back method

back up block：支撑块

back to back houses 背对背房屋 | back up block 支撑块 | back up wall 背墙

Back-up light：倒车灯 Back wall 后围

Back-up buzzer 倒车报警器 | Back-up light 倒车灯 Back wall 后围 | Bad conductor 不良导体

backed bill：背书票据 backed bill 背书票据

360 1 back date 倒填日期,填早日期 back date 倒填日期,填早日期 | 361 1 backed bill 背书票据 backed bill 背书票据 | 362 1 back-end load 后期负担 back-end load 后期负担

backlog depreciation：欠提折旧 backlog depreciation 欠提折旧

362 1 back-end load 后期负担 back-end load 后期负担 | 364 1 backlog depreciation 欠提折旧 backlog depreciation 欠提折旧 | 365 1 back order 欠交订货 back order 欠交订货

back echo reflection：后回波反射 back radiation 反辐射

Babinet's principle 巴比内原理 | back echo reflection 后回波反射 back radiation 反辐射 | back-bent occlusion 后曲囚锢

in the back of：在...内的后面

back to back 背对背 | in the back of 在...内的后面 | on the back 在背面

背弃,抛弃;make waves=捣蛋,兴风作浪：I turned my back on him,because I didn't want to make waves. turn one's back on

'Cause you ain't a fish no more. ... | I turned my back on him,because I didn't want to make waves. turn one's back on=背弃,抛弃;make waves=捣蛋,兴风作浪 | My son's out there with a bull's-eye on his b...

back cone ; normal cone：背锥

背对背安装 back-to-back arrangement | 背锥 back cone ; normal cone | 背锥角 back angle

right back：右后卫

说完了中场,该说说后卫(full back)了. 后卫这片场地里也实行"分片负责制",有中后卫(center back)、左后卫(left back)和右后卫(right back). 有时为了防止被对手轻易突破防线,还要有一个拖后中卫(sweeper).

be laid on one's back：卧病在床

be glad to see sb.'s back (= be glad to see the back of sb.) 巴不得某人离开; 希望摆脱某人 | be laid on one's back 卧病在床 | be on one's back 仰卧; [口]卧病; [口]毫无办法, 一筹莫展

steam trap valve：疏水阀

球阀 ball valve | 疏水阀 steam trap valve | 蛇管式换热器 serpentine type heat exchanger

aldermanship：市政官

aldermanry 议员 | aldermanship 市政官 | Alderney 乳牛