介绍了因单个高频大功率晶体管输出能力有限而采用多管并联运用(积木式)的方法。
Introduced the method of multi-transistor modular design, for the output ability are limited in single high-frequency power transistor.
利用ANSYS的APDL（参数化设计语言）的强大功能对某电厂多管式烟囱进行了有限元分析与结构优化设计。
The useful APDL(ANSYS parametric design language)technology was used in the finite element analysis and structural optimum design of the multi-flue chimney of a power plant.
介绍了固定床工艺、流化床工艺、多管式反应器以及一步法甲醇制汽油（MTG）的工艺特点及其流程，并对几种工艺进行了比较。
In the paper, the process characteristic and flow of several major MTG processes including fixed bed, fluidized bed and multi-tube reactors are reviewed, and these processes are compared.
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