Use to indicate an all-around welding operation.
用于指示圆周焊接操作。
Drag onto the page to add an all-around welding operation.
拖到绘图页后，可以添加圆周焊接操作。
Use to indicate an all-around welding operation. Bend location is adjustable.
用于指示圆周焊接操作。弯曲位置可以调整。
Welding welding operation must hold professional certificates, and strictly abide by the rules.
气焊电焊必须持专业操作证，并严格遵守操作规程。
According to the structural characteristics of joints, welding operation normally lasts no more than 3s.
根据连接部位的结构特征，焊接操作时时间一般不超过3s。
The welding operation could be continued only if no error detected.
只有证实没有异常情况，才可继续焊接工作。
The freely turned working platform should be set for the convenience of welding operation in all angles.
因设置自由翻转的工作平台，方便各角度的焊接作业。
The importance of welding safety training was introduced. Dangerous and harmful factors of welding operation were described.
介绍了焊接安全生产培训的重要意义，阐述了焊接作业的危险因素和有害因素。
The present invention discloses a welding pipe and has simple welding operation, high welding speed and high welding quality.
本发明公开了一种焊接用管，该管和与之相应的管一起焊接可以简化操作，提高焊接速度和焊接质量。
Original preheating temperature: the temperature of the workpiece in the weld zone immediately prior to any welding operation.
初始预热温度是指任何焊接操作开始之前，焊接区域内工件的瞬时温度。
If following situations happen in construction site for welding of pipeline and no protective measure are taken, welding operation shall be stopped.
4管道的施焊环境若出现下列情况之一，而未采取防护措施时，应停止焊接作业。
Risk spot analysis is conducted on powder making system in boiler operation and welding operation in boiler examining and repairing and some control measures are put forward.
分别对锅炉运行中的锅炉制粉系统和锅炉检修中的焊接作业进行危险点分析，提出了控制措施。
Risk spot analysis is conducted on powder making system in boiler operation and welding operation in boiler examining and repairing and some control measures are put forward.
分别对锅炉运行中的锅炉制粉系统和锅炉检修中的焊接作业进行危险点分析，提出了控制措施。
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