查询词典 back up

Back pressure valve：止回阀

backlash valve 无游隙阀门 | back-pressure valve 止回阀 | back-up valve 列车后端制动阀

back sb up：支持某人

bachelorn.单身汉;学士 | back sb up 支持某人 | back down 放弃要求

Back up data：备查资料

back reaction 反向反应 | back up data 备查资料 | backache 背痛

back-up valve：列车后端制动阀

back-pressure valve 止回阀 | back-up valve 列车后端制动阀 | balance pressure reducing valve 平衡减压阀

back-up area：后勤地区;辅助埸地

back-fire 逆火 | back-up area 后勤地区;辅助埸地 | backfill 回填;回填土

To bail out：将水舀出

to back up 支持 | to bail out 将水舀出 | to be back 回来

bare of：没有,缺乏

back up 后退 | bare of 没有,缺乏 | back out 退出

break with：与(人) 断交

break up 解散,分散 | break with 与(人) 断交 | 5. back back out of 收回(诺言),承担的责任

bring sb. back to life：使某人起死回生

bring back to one's mind 使回想起 | bring sb. back to life 使某人起死回生 | bring sb up 抚养某人,教育

It's a lot of chicken feed：这是小意思,不算什么

279. I'll back you up all the way. 我完全支持你. | 306. It's a lot of chicken feed. 这是小意思,不算什么. It's nothing. | 307. Don't chicken out. Be a man. 不要退缩了. Don't back out.

phenol red：酚红,苯酚磺酞

phenol reagent 酚试剂 | phenol red 酚红,苯酚磺酞 | phenol red test 酚红排泌试验

accessory equipment：附件

accessory equipment 辅助设备 | accessory equipment 附件 | accessory part 附件