阿摩線上測驗
20. The objective of ________ is to ensure that the axis of engine shaft is straight, uniformly
supported by the bearings and properly positioned longitudinally when the engine is running and
under load.
(A) engine parameter adjustment
(B) engine performance
(C) engine alignment
(D) engine power calculation
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統計： A(211), B(204), C(684), D(136), E(0) #2778115
統計： A(211), B(204), C(684), D(136), E(0) #2778115
