The possibility of damage from operating a diesel engine at critical speeds is reduced by the use of（）.<br>A:an isochronous governor<br>B:elastic engine mounts<br>C:a vibration damper<br>D:a cast iron bed plate with good flexible qualities

The possibility of damage from operating a diesel engine at critical speeds is reduced by the use of（）.
A:an isochronous governor
B:elastic engine mounts
C:a vibration damper
D:a cast iron bed plate with good flexible qualities

出自：海船船员证

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