Reflow Soldering: Melting, joining and solidification of two coated metal layers by application of heat to the surface and predeposited solder paste.
回流焊：应用加热金属涂敷层的表面和预涂焊膏，熔融，连接和凝固两个金属涂层。
In the area of manufacturing, lasers are used for drilling, cutting, joining, hardening, surface modification and micromachining.
在生产领域，激光可以用来钻孔、切割、连接、硬化以及进行表面改性和微加工。
This standard applies to mechanical joining elements with metric ISO thread and flat head bearing surface.
本标准适用于ISO米制螺纹平支承面的机械连接元件。
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