About the jacket water, that of the auxiliary engines usually is circulated by pumps, and the main engine usually .
所属题库：二管轮
题目介绍:
Aboutthejacketwaterthatoftheauxiliaryenginesusuallyiscirculatedbypumps
andthemainengineusually.,
an engine-driven, as well?an engine-driven, has an independent pump?an independent, as well?an independent, has an engine-driven pump? 本题为最佳选择题收录于二管轮题库中。
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