单项选择题
The scavenge air receiver is of a simplified and modular design with integral non-return flaps, hanging cooler and two auxiliary air blowers（）
A.dozens
B.parcels
C.bundles
D.gallons
点击查看答案&解析
相关考题
-
单项选择题
The piston crown employs the usual jet-shaker principle with an arrangement of cooling bores in the crown so that the surface temperatures of the crown are moderate with a very even distribution（）
A.water cooling
B.oil cooling
C.air cooling
D.combined cooling -
单项选择题
The development goals for a large marine engine are many often interact and in some cases even with each other（）
A.conflict
B.accord
C.harmonize
D.struggle -
单项选择题
The key feature of the Sulzer RT-flex system is that it gives complete freedom in the and operation of fuel injection and exhaust valve actuation（）
A.metering
B.control
C.using
D.timing
