vt. vacuate
misc. vacuum production
当然，整个设备必须抽成真空。
然后，把生长室抽成真空，使晶体在较小的温度梯度的温场中自然冷却到室温。
Under such circumstances, two different types of temperature fields required by the growth and annealing of crystals respectively can be provided in the same chamber.
以及腔室，在其中包括压铸单元并且安装有真空 泵，真空泵将腔室抽成真空以防止非晶合金的氧化。
The chamber comprises the die-casting unit and is equipped with the vacuum pump which pumps the chamber into vacuum for preventing the oxidation of the amorphous alloy.
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