气缸盖裂纹
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cracks of cylinder heads
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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