查询词典 drop bottom

drop hammer test：落鎚试验,落重试验

"drop hammer driver","落鎚打椿机" | "drop hammer test","落鎚试验,落重试验" | "drop hanger","吊架"

drop in：顺便访问

14.drop by 顺便访问 | 15.drop in 顺便访问 | 16.drop off 减弱

drop in pressure：压力降低

drop hammer落锤 | drop in pressure压力降低 | drop lubrication滴油润滑

drop in beam：挂梁

drop heating system 下给式供热系统 | drop in beam 挂梁 | drop penetratoin test 动力触探试验

drop in on：顺道拜访

drop down 卧倒 | drop in on 顺道拜访 | drop in 顺便走访

drop in on：拜访(后接人)

drop in at 拜访(后接地点) | drop in on 拜访(后接人) | drop across 串门,偶遇

drop in on：順便訪問(人)

22. drop in at 順便訪問(地方) | 23. drop in on 順便訪問(人) | 24. drop out of 退出(活動)、輟(學)

drop keel：中插板

drop keel 滑动龙骨;下垂龙骨 | drop keel 中插板 | drop line valve 下舱阀

drop keel：滑动龙骨;下垂龙骨

drop into 开进 | drop keel 滑动龙骨;下垂龙骨 | drop keel 中插板

drop keel：滑动龙骨

落锤 drop hammer | 滑动龙骨 drop keel | 落冲 drop stamp

genetic recombination：遗传重组

第三节基因重组和基因杂交基因重组(gene recombination) 遗传重组(genetic recombination):两个独立基因组内的遗传基因,通过一定的途径转移到一起,形成新的稳定基因组的过程.

d-c restorer：直流分量还原器

d-c reinsertion 直流成分恢复 | d-c restorer 直流分量还原器 | d-c ringer 直流电铃