补偿活塞

compensating piston的用法和样例：

例句

All the apprentices rushed to help fit the piston.徒工们都跑过来帮助装活塞。
They use a piston engine instead.他们改用活塞发动机。

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学英语单词

a set

acoustic impedance difference

arc welding electrical supply

as blind as an owl

bandgap grading

Baron Friedrich Heinrich Alexander von Humboldt