Water lubricated tailshaft bearings wear,()
- Athe after one is more than forward one
- Bthe forward one is more than after one
- Cthe forward one is the same with after one
- Dit depends on the type of engine
Water lubricated tailshaft bearings wear,()
1、() fuel oils () lubricating oils requi
() fuel oils () lubricating oils require treatment before passing to the engine.ABoth;andBNeither;norCEither;orDBoth;or
英译汉:lubrication
3、The bearing of tailshaft sealing equip
The bearing of tailshaft sealing equipment, which adopting the oil nature circulation is hot, the reason is()Athe rotate speed fluctuationBthe ventilation tube cloggedCthe main engine accelerate so fastDstormy wave
4、Overgreasing of ball bearings installe
Overgreasing of ball bearings installed on pumps will result in ().Asmoother pump operationBoverheating of the bearingCreduced corrosion in the bearingDincreased pump capacity
英译中:Bear market
下面的观点中,Bear提出的是A计算机体系结构应该以站在程序员的角度来看计算机的属性B体系结构是由结构、组织、实现和性能四个方面组成的C传统体系结构是指硬件和软件之间的界面...