Its technological process mainly consists of the operating units of superchar ging, purification, freezing, condensate fractionation, etc.
其工艺流程主要由增压、净化、冷冻、凝液分馏等操作单元组成。
Based on analysis of the causes, method for reducing heated length variation as well as simplified identifying approach are proposed aiming at its technological process.
分析了原因，提出了从工艺着手降低加热长度变化率的方法，以及加热长度变化率的简易鉴定方法。
The article introduces choices of direct purge on gas transmission system displacement method, determination of purge criteria, its technological process and control, then its reliability.
介绍城市煤气输配系统置换方式的选择、置换参数的确定、置换工艺流程及指标的控制，说明直接置换方式的可靠性。
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