It is matters of common concern for shipping circles how to run at lower speed for the diesel engine and not to make it deviate from its optimum operating condition a lot.
如何做到降速的同时，又不使柴油机偏离最佳工况太多，是航运界共同关心的问题。
It is matters of common concern for shipping circles how to run at lower speed for the diesel engine and not to make it deviate from its optimum operating condition a lot.
如何做到降速的同时，又不使柴油机偏离最佳工况太多，是航运界共同关心的问题。
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