... 2.13不完整螺纹incomplete thread 2.14螺尾washout thread;vanish thread 2.15有效螺纹useful thread ...
基于40个网页-相关网页
... vanish system 涂料系统 vanish thread 尽头螺纹 vanish vi 消灭不见 ...
基于4个网页-相关网页
washout thread vanish thread 螺尾
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