C高温回火，因此在镀膜时没有尺寸改变的危险CVD化学蒸馏（Chemical Vapour Deposition）在1000?C左右的高温下，被覆高耐磨镀膜，镀膜完成后，模具必须在真空炉内做淬火及回火处理。
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所有各种化学过程，比如蒸馏，就利用了液相，和气相的混合物。
All sorts of chemical processes. Distillation, for example, takes advantage of the properties of liquid and gas mixtures.
用过滤、吸附、化学处理、蒸馏、漂白等方法从液体石油产品中脱除悬浮、胶态及溶解杂质的过程。
The process of removing suspended, colloidal, and dissolved impurities from liquid petroleum products by filtering, adsorption, chemical treatment, distillation, bleaching, etc.
现行的用于蒸馏和化学反应的烧瓶类玻璃仪器，有园底烧瓶、两颈瓶、三颈瓶等。
Currently, the apparatus used in distillation and other chemical reactions include round bottom flask, two necked bottle, three necked bottle, and etc.
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