... purging N2 吹洗[用]氮气 purging of heat-supply pipeline 供热管道清洗 purification 净化，提纯，精制；纯化；精炼 ...
基于16个网页-相关网页
综合 ... 热网温度试验 hot-state strength test of heat-supply network 管道清洗 purging of heat-supply pipeline 热网试运行 trial operation of heat-supply network ...
基于8个网页-相关网页
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