... fuel valve body；燃油阀阀体 fuel valve needle；燃油阀阀针 fuel valve seat；燃油阀阀座 ...
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燃油阀阀针
Fuel valve needle
以上为机器翻译结果，长、整句建议使用 人工翻译 。
通过实践总结和分析，论述柴油机燃油供给系统三大精密偶件，即柱塞、出油阀和针阀偶件的四种检测方法，为实际操作提供经验。
This paper mainly expounds four inspection means for three big precision coupling of fuel supply system in diesel engine based on the practice, which can be covered for practical operation.
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