bottomed... 底的底是 ... 的
bottomn.底部;底端adj.底部的v.触底;打(基础)
Bottom water conning底水锥进
bottom delivery feed下排式排种器
bottom well stripper底部圆筒汽提器
bottom ratchet wheel下棘轮
Bottom Argon Blowing底吹氩
bottom gully erosion底部沟蚀
bottom blown furnace底吹炉
bottom hole pressure井底压力
bottom-loaded pile托桩
bottom current meter底层流速计