Pistons may be made in （） in order to keep the weight down for balancing purposes at high speed. -题库考试答案搜索网

Pistons may be made in （） in order to keep the weight down for balancing purposes at high speed.

单选题

2022-01-04 19:29

A、cast iron
B、forged steel
C、stainless steel
D、aluminum alloy

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正确答案

D

试题解析

标签：船舶动力装置海船船员考试

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