Area welding 焊接部面积
large-area welding 大面积焊接
welding coarse crystal area 焊接粗晶区
The holes in welding area mainly cause the fatigued wire to break.
焊接造成的内部气孔使环形锯丝在该处产生疲劳断裂。
SEM showed no pores and other defects and some ductility at laser welding area.
断口扫描电镜观察显示断口有一定的塑性，未发现气孔和焊接缺陷。
Is strictly prohibited in the welding area of arc, the ground wire is appropriate, the connection is firm, in order to avoid arc abrasion.
严禁在非焊接区域引弧，地线位置适当、连接牢固，以避免电弧擦伤。
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