本文以某气体分馏装置为例，通过严格的流程模拟，分析了产品质量、回流比和塔压等操作参数对总经济效益的影响。
A case study of gas separation system is given to illustrate the effects of product quality, reflux ratio and tower pressure to total economic benefit through flow simulation.
反应过程中生成的气体通过冷凝回流装置不断地从反应体系中分离溢出。
During the reaction, the evolved gases were constantly separated through condenser from the system and collected in the 400ml measuring cylinder.
对于气体排出系统，使用止回阀或其它保护性装置以防止回流。
On gas withdrawal systems, use a check valve or other protective apparatus in any line or piping from the container to prevent reverse flow.
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