A.結(jié)構參數(shù) B.性能參數(shù) C.質(zhì)量參數(shù)
A.質(zhì)量參數(shù) B.主要尺寸參數(shù) C.結(jié)構參數(shù) D.性能參數(shù)
A.5%~10% B.5%~15% C.15%~20% D.20%