In order to achieve good heat dissipation effect, rear cover material selection metal parts And at the same time, heat dissipation structure in order, making the external appearance more vivid.
为了达到良好的散热效果后盖材料选择金属件，同时散热结构整齐有序，使得外观更加生动。
This paper introduce the raw material selection, furnace parameters and operating method for smelting metal silicon in chemical use.
本文介绍了化学用硅需要的原料选择、设备的工艺参数及冶炼操作方法。
New development on the fabrication of metal-matrix surface composites with cast infiltration was introduced from the angles of material selection, infiltrating techniques and application.
从材料的选择、铸渗工艺、及铸渗应用等方面，介绍了国内外运用铸渗法制备钢铁基表面复合材料的新进展。
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