单项选择题
A.foundation B.seating C.entablature D.bedplate
Basically the bedplate consists of two （）, which run th...
单项选择题Basically the bedplate consists of two （）, which run the length of the engine.
A.longitudinal girders B.transverse girders C.fore girders D.aft girders
The bedplate must be rigid enough to support the weight...
单项选择题The bedplate must be rigid enough to support the weight of the rest of the engine, and maintain the crankshaft, which sits in the bearing housings in the （）, in alignment.
Pressurized air enters the cylinder via the inlet ports...
单项选择题Pressurized air enters the cylinder via the inlet ports and pushes the remaining exhaust gas from the cylinder in a process known as “（）”.
A.charging B.super charging C.scavenging D.exhausting
