A.領(lǐng)從蹄式 B.雙領(lǐng)式 C.雙從式 D.自增力式
A.0.25~0.5mm B.0.20~0.5mm C.0.50~1.0mm D.0.80~1.2mm
A.10-30% B.80-100% C.50-80% D.30-50%