A.基圓 B.分度圓 C.齒根圓 D.齒頂圓
A.分度圓 B.基圓 C.節(jié)圓 D.齒根圓
A.模數(shù)越大,齒輪就越大 B.模數(shù)越大,壓力角就越大 C.模數(shù)越大,輪齒就越大 D.模數(shù)越大,分度圓就越大