welding operation meaning in Chinese

焊接操作
焊接法
焊接作业

Equipment for eye and face protection during welding operations
焊接眼面防护具
Xth series welding platform is provided with 3 lower sucking hoods plus i side lower sucking hood so as to effectively catch all the lead flame resulting from the welding operation
Xth系列焊接工作台， 3个下吸罩，外加一个侧下吸，从而有效的捕捉焊接所产生的铅烟。每个吸罩都带有风量调节装置。
This paper presents the welding quality control measures and welding methods prepared in accordance with the working time , site conditions and elements of the steel tube arches of lhasa river bridge , and also describes in details the procedure control , methods and criteria for inspection and acceptance of the welding operation
摘要介绍拉萨河特大桥钢管拱焊接质量控制措施，因时因地因件制定焊接方法，强调焊接的过程控制、检验和验收的方法、标准。
With an introduction of the influences of the final quality of rail aluminothermic welding , such as : the quality of welding kits ( esp . the portion ) , the result of pre - heating , the welding operation and the level of operators etc . , this paper analyzes some problems when rail welding under special conditions
摘要介绍了焊接材料质量、预热效果、操作人员水平等因素对钢轨铝热焊接接头质量的影响，以及几何误差不同、轨头宽度不等、寒冷气候等特殊条件下进行铝热焊接应注意的问题。