A.減少調(diào)整片的數(shù)量 B.增加調(diào)整片數(shù)量 C.調(diào)整鎖閉桿的長度 D.增加連接鐵的厚度
A.90mm B.100mm C.110mm D.117mm
A.69mm B.70mm C.76mm D.80mm