A.齒面接觸強(qiáng)度;齒數(shù)z1 B.輪齒彎曲強(qiáng)度;齒數(shù)z1 C.齒面接觸強(qiáng)度;模數(shù)m D.輪齒彎曲強(qiáng)度;模數(shù)m
A.80% B.90% C.100% D.70%