The sealing rings are in four parts and pressed together around the piston rods by means of ().
时间:2022-11-10
If your propeller is racing in rough weather,you should().
超级汽轮发电系统(STG)是废热利用联合装置,其余热利用装置有()。Ⅰ.废气/蒸汽联合驱动的涡轮发电机;Ⅱ.空气冷却器;Ⅲ.废气锅炉
A: Please tell me the specifications and quantity. B: ()
The rate of heat transfer in a water-tube auxiliary boiler can be increased by ().
All marine low-speed diesels are of what design?()
柴油机停增压器运转后,应使()。
In a typical fuel oil system, the oil is stored in tanks in the double bottom from which it is pumped to () and heated.
船舶动力装置的管路系统,是用以输送()的管系。由()等组成。
换新主机的连杆大端轴瓦时,其上瓦与曲柄销颈在()内的接触面积不少于()。
The cross-head shoes are white metal ().
针阀偶件过度磨损的部位发生在()上。Ⅰ.端面配合面;Ⅱ.喷孔;Ⅲ.圆柱配合面;Ⅳ.锥面配合面;Ⅴ.针阀体锥面。
设X服从参数为λ>0的指数分布,其数学期望EX=()
The bearing shells depend on the accuracy of () to held them in a truly circular shape.
What is the speed of the crankshaft in a four-stroke/cycle engine when the camshaft is turning at 750 rpm?()