A.75% B.90% C.95% D.85%
A.相互頂緊 B.保持一定間隙 C.接觸但不頂緊 D.保持負(fù)公差
A.應(yīng)同樣 B.不應(yīng)同樣 C.視情況而定 D.視監(jiān)理要求