A description is made of the structural characteristics of the new-type U-tube heat exchanger, and an introduction is given to its use in the crude methanol system.
阐述了新型U形管换热器的结构特点，介绍了该种换热器在粗甲醇系统中的应用情况。
This paper recommended two kinds of improved designs for this spray system, and made a concrete description for their structural features.
本文介绍了两种喷淋装置的结构改进方案，并就其结构设计作了具体的叙述。
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