切割气体既要保证等离子射流的形成，又要保证去除切口中的熔融金属和氧化物。
Cutting gas is to ensure that the formation of plasma jet, and to ensure that remove the molten metal oxides and incision.
熔纺包括尼龙在惰性气体中的熔化、控制熔融体挤出和固化、卷绕挤出的长丝等几个过程。
Melt spinning involves melting the nylon in an inert atmosphere, controlling the extrusion and solidification of the melt, and collecting the extruded filaments.
许多事实证明，在地壳及地球深部存在着大量的流体，它们以气体、液体、熔融体等形式存在于地球内部不同深度处。
It has been proved that there is a great deal of fluid in the crust and deep part of the earth.
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