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【单选题】
活塞环三隙中，什么是侧隙？A.
活塞环在冷态下装入气缸后，该环在上止点时环的两端头的间隙
B.
活塞环装入活塞后，其侧面与活塞环槽之间的间隙
C.
活塞环内圆柱面与活塞环槽底部间的间隙
D.
以上都不是
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【单选题】Flywheel _________ tends to keep it rotating at a constant speed.
A.
inertia
B.
quality
C.
weight
D.
rotation
【简答题】David tends to feel useless and unwanted in a society that gives so much ________ to those who compete well. A) prestige B) regime C) superiority D) legislation
【单选题】Flywheel ( ) tends to keep it rotating at a constant speed.
A.
inertia
B.
quality
C.
weight
【单选题】Flywheel______ tends to keep it rotating at a constant speed.
A.
inertia
B.
quality
C.
movement
D.
weight
【单选题】________ is not the purpose of a flywheel.
A.
It reduces vibration by smoothing out the power stroke as each cylinder fires
B.
It is mounting surface used to bolt the engine up to its load
C.
Some diesel flywheel has gear teeth around its perimeter that allow the starting motors to engage and crank the engine
D.
It converts the up and down motion of the piston into a rotary motion
【单选题】Flywheel _______ tends to keep it rotating at a constant speed.
A.
quality
B.
weight
C.
movement
D.
inertia
【单选题】Flywheel inertia tends to keep the ______ rotating at a constant speed.
A.
crankshaft
B.
camshaft
C.
connecting rod
D.
piston
【单选题】Flywheel tends to keep it rotating at a constant speed.
A.
inertial
B.
quality
C.
movement
D.
weight
【单选题】在实际测量中,根据角度测量原理,竖轴必须处于铅垂位置,当仪器轴线几何关系正确时,满足这个条件的主要前提是
A.
垂球线所悬挂垂球对准地面点
B.
圆水准器气泡居中
C.
光学对中器对准地面点
D.
水准管气泡居中
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