Thermal distillation involves heat: Boiling water turns it into vapor-leaving the salt behind-that is collected and condensed back into water by cooling it down.
热蒸馏涉及到加热：沸腾的水变成水蒸气- - -盐分留了下来- - -被收集的蒸汽冷却后凝结成水。
Condenser: vapor of the refrigerant from the generator is cooled down by the cooling water running in the heat transfer tubes of the condenser thus becoming condensate after condensation.
冷凝器：在发生器中产生的冷剂蒸汽，被冷凝器传管内流动的冷却水冷却，冷凝后变成冷剂液体。
As the feed stream flows through the choke, the resulting J-T expansion and cooling causes some gas and most of the water vapor to liquefy.
当原料气流过节流件时，产生焦耳-汤姆逊膨胀及降温，使部分气体和大部分水蒸汽液化。
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