... 疏水，排泄，排除，排水道，排水，排水沟(管)，(复数)排水设施；漏电 drain 排水与放气系统 drain and vent system 疏水端差 drain approach ...
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boiler drain and vent system 锅炉疏水和放气系统
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Installation and compensation of steam pipeline, vent and condensate drain-off of steam system, recovery of condensate are discussed.
探讨了蒸汽管道的敷设和补偿，蒸汽系统的排气和疏水，凝结水的回收。
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