The advantage and disadvantage of the five recycling methods, direct heating, direct aqueous vapor, indirect aqueous vapor, reduced pressure distillation, precipitation method, is discussed.
探讨了直接加热法、直接水蒸汽法、间接水蒸汽法、减压蒸馏、酒精沉淀等五种回收方法的优缺点。
The working principle and designing methods of the indirect heating helical type coal burner were presented in this paper.
本文介绍了旋板式燃煤间接加热热风炉的工作原理及设计方法。
Presents respectively the theoretical calculating methods of peak load regulating in direct and indirect geothermal district heating systems.
介绍了直接式和间接式地热供热系统调峰负荷的理论计算方法。
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