查询词典 pumping-back method

back step sequence：后退焊接顺序

back step method 逐步退焊法 | back step sequence 后退焊接顺序 | back step welding 逐步退焊法

back step sequence：[后]退焊顺序

[后]退焊法 back step method | [后]退焊顺序 back step sequence | [后]退焊接 back step welding

specific gravity balance：比重水平,比重天平

specific gravity at pumping temperature 泵送温度下的液体比重 | specific gravity balance 比重水平,比重天平 | specific gravity balance method 比重天平法

at the back of one's mind：在记忆的深处, 下意识地

(as) bare as the back of one's hand 一无所有; 一贫如洗 | at the back of one's mind 在记忆的深处, 下意识地 | at sb.'s back (=at the back of sb.) 跟随某人; 支持某人

back end plate：后端板

后柱(主机) back-column or back housing | 后端板 back end plate | 逆火,回火 back fire

back page：最后部分的

back-order 订 | back-page 最后部分的 | back-to-back 紧接的

back to back credit：对开信贷

backdoor listing "借壳"上市;"买壳"上市 | back-to-back credit 对开信贷 | back-to-back loan 对销贷款

back to back houses：背对背房屋

back surge 逆哩 | back to back houses 背对背房屋 | back up block 支撑块

back to back diodes：背对背二极管

back surface field 背面电场 | back to back diodes 背对背二极管 | back wave 返波

back to front：背对面地杂乱无序的

back to back | 背对背, 紧接 | back to front | 背对面地杂乱无序的 | back to square one | 问题回到原态,并没有解决

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