product vapor 产品蒸气
Rapid withdrawal of product (vapor phase) from a cylinder will cause the temperature of the remaining liquid to drop.
从钢瓶内迅速的提取产品(气相)会引起剩余液体温度的下降。
A typical transfer line for dewars is connected to a bayonet that provides a means of using product vapor pressure build-up or an external pressure source to remove the liquid.
用于杜瓦瓶的典型的转移管连接到卡口上，利用产品积累的蒸气压或外部的压力源来取出液体。
The liquid is pushed from the cylinder by the vapor pressure of the product.
产品的蒸气压把液体推出钢瓶。
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