基本解释[機][助劑] 助銲劑词组短语短語Scaling powder is polluted 更換助銲劑Scaling powder is insufficient content 更換助銲劑Scaling powder is not enough 檢查調節POWDER SCALING 凹部分的強度scaling powder更多词组专业释义機械工程助銲劑化學助銲劑