valve plunger adjustment screw的意思|示意
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气门柱塞调整螺钉
valve plunger adjustment screw的网络常见释义
气门柱塞调整螺钉 ... valve plunger；气门柱塞 valve plunger adjustment screw；气门柱塞调整螺钉 valve port；气门孔口 ...