welding ball node 焊接球节点
welding ball valve 焊接球阀
welding hollow ball 焊接空心球
Golf ball welding machine 高尔夫练习球专用焊接机
The welding of hollow aluminium ball has more particularities, it adopts the vacuum electronic beam welding that is more favorable than laser welding.
空心铝球的焊接更有特殊性，采用真空电子束焊接比激光焊接更为有利。
The observation results of SEM and MS2000 indicate that cold welding, fragmentation and work harden occurred during high energy ball milling.
SEM和MS2000分析结果表明，高能球磨中存在冷焊、断裂和加工硬化现象。
If the ball within the cylinder sediment, and welding slags sundry total volume in not more than 5 litre, pigging qualified.
若收球筒内泥沙、焊渣等杂物总体积不超过5升，清管合格。
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