正确答案: A

431.5mm

题目：6ESD43/82型船用柴油机气缸套最大内径增量为1.5mm，则最大缸径为（）。

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学习资料的答案和解析：

[单选题]The device allowing for the change in volume of the cooling water in a propulsion diesel engine closed cooling system is the （）.

fresh water expansion tank

[单选题]The purpose of the safety relief valves installed on an auxiliary boiler is to （）.

reduce excess steam pressure in the boiler