pitch bead welding是什么意思，pitch bead welding的翻译，pitch bead welding音标、读音、用法和例句

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pitch bead welding是什么意思，pitch bead welding的翻译，pitch bead welding音标、读音、用法和例句_流逝汉英词典

pitch bead welding

基本解释

专业释义

機械工程