A.0.42s B.0.84s C.1.2s D.1.52s
A.鉆壓 B.機(jī)械鉆速 C.泥漿排量 D.轉(zhuǎn)盤轉(zhuǎn)速
A.MTF B.GTF C.RGTF D.GTF via MTF