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这时检查，要比开焊之后才发现靠谱。
It is better to find out at this point than after you start soldering.
youdao
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用于工作的切割、开焊槽、打空等。
Use for cutting, welding defects removing, making.
youdao
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义齿焊区未见断裂、开焊、变形及腐蚀变色现象。
There was no joint fractures and corrosions and color changes.
youdao