Each cylinder is closed at the top by a () made of a special heat-resistant steel.
时间:2019-04-13 15:48:04 关键词:at,the,topEach cylinder is closed at the top by a (), made of a special heat-resistant steel.
A.cylinder liner
B.coupling flange
C.cylinder cover
D.piston crow
答案解析
C
举一反三