單項選擇題

With reference to a two ram actuating mechanism, which one of the following statement is false?（）

A.The rams work inside cylinders
B.The cylinders have glands sealing their open ends
C.The rams are connected to a cross-head
D.The cross-head is mounted on the rudder stock

你可能感興趣的試題

單項選擇題

The DC excitation to the field of brushless synchronous is generally produced by （）

A.an exciter driven by the same shaft with the generator
B.an exciter driven by external prime mover
C.generator itself
D.either A and B

單項選擇題

Which of the following equipment is not pollution prevention equipment?（）

A.oily water separator
B.sewage treatment plant
C.fuel oil separator
D.incinerator

97免费在线观看视频,亚洲综合自拍网,黄色毛片免费观看,热久久综合网,免费看日产一区二区三区 狠狠操av,久久久涩涩涩,在线精品免费视频,人人插天天干,久久91精品国产91久久

With reference to a two ram actuating mechanism, which one of the following statement is false?（）

你可能感興趣的試題

The DC excitation to the field of brushless synchronous is generally produced by （）

Which of the following equipment is not pollution prevention equipment?（）

97免费在线观看视频,亚洲综合自拍网,黄色毛片免费观看,热久久综合网,免费看日产一区二区三区狠狠操av,久久久涩涩涩,在线精品免费视频,人人插天天干,久久91精品国产91久久