... 引擎和发动机防污染设备 Anti-pollution devices for motors and engines 引擎气缸盖 Cylinder heads for engines 自行车电机 Bicycle dynamos ...
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cylinder heads for engines
发动机气缸盖
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The statistics of cracks of cylinder heads during operation of diesel engines for DF 7 locomotives were conducted. The reasons of cracks were analyzed.
对东风7型机车柴油机运用中气缸盖裂纹情况进行了统计，对裂纹原因进行了分析。
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