A.帶數(shù) B.倍數(shù) C.余數(shù) D.整數(shù)
A.每次下鉆到底開(kāi)泵 B.每次短起下鉆到底開(kāi)泵 C.每次停泵再開(kāi)泵 D.每次修泵再開(kāi)泵