Last Updated:2025/11/20

The mechanic inspected the piston for wear before reassembling the engine.

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The mechanic inspected the piston for wear before reassembling the engine.

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整備士はエンジンを再組み立てする前に、中空の筒の内側に収まり、圧力で動く固い円盤または円柱(ピストン)の摩耗を点検した。

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