A、counterbalance the crank throws on the crankshaft
B、keep the engine running smoothly between power stroke
C、provide a belt-driving surface for the operation of auxiliary machinery
D、prevent the engine from overspeeding
A、counterbalance the crank throws on the crankshaft
B、keep the engine running smoothly between power stroke
C、provide a belt-driving surface for the operation of auxiliary machinery
D、prevent the engine from overspeeding
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