The colder surface water then rolls to the bottom where it absorbs heat from the earth and is returned to the surface to continue the melting process.

水面上较冷的水就会流动到底部，从地面吸收热量，然后再上升到水面继续融化处理。

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The factors including of melting-casting process, extrusion process, die, and extrusion device resulting in the surface streaks of 6063 aluminium alloy profiles were analyzed.

从熔铸工艺、挤压工艺、模具、挤压设备等方面分析了6063铝合金型材在挤压过程中产生表面条纹的原因，并提出了相应的对策。

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Note: Because the salt in the process of melting, but also the silver on the dirt away, it will not scratch the surface, oh, we can try!

注：因为盐在融解的过程，也把银饰上的污垢带走了，也不会刮花表面哦，大家可以试试看！

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