Which of the following may take place if the clearance of the main bearings are excessive?()
时间:2020-08-14 00:42:08 关键词:following,may,takeWhich of the following may take place if the clearance of the main bearings are excessive?()
A.bearing knocks
B.dropping of pressure of LO
C.noises
D.all the above
答案解析
D
举一反三