最少有三个点焊。
工厂及现场焊接。
铁易焊接。
The strength and plasticity of welds were equivalent to the base metal.
焊接接头强度、塑性均可达到与母材相当的水平。
Ultrasonic flaw location in semisphere butt welds by sound path method is described.
介绍半球对接焊缝超声探伤的声程定位方法。
Unfortunately, strip blistering defects occurred in the welds in field construction.
现场施工时，出现了条状气孔缺陷。
Welds also help block vibration transmission through the steel frame.
焊件也有助于削弱振动传递。
Welds also help block vibration transmission through the steel frame.
焊件也有助于削弱振动传递。
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