介绍了苯酐装置系统中增加部分冷凝器的流程，操作讨论了加部分凝冷器前后的经济效益。
The flow sheet and operation in phthalic anhydride plant system after the adding partial condensator were introduced.
该文介绍了海水蒸发器、预热器、终端冷凝器、海水箱等系统主要设备及海水淡化蒸发工艺流程。
The main parts of the system including the steam generator, the evaporator, the preheater, the final condenser, and the seawater tank are described in the paper.
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