A tube shell heat exchanger model was used to serve as the test section, devided into four crossing paths by three baffles along its length.
实验段采用壳管式换热器模型，沿长度方向用三块折流板将管束分成四个冲刷流程。
To the possible practical situations in small refrigeration system, this paper establishes a nonlinear model to calculate twenty-four cases for a non-adiabatic capillary tube.
本文就小型制冷系统中可能出现的实际情况，对非绝热毛细管建立了与之相适应的非线性模型，并以此模型模拟计算常见的二十四种工况。
The stress-strain relation of steel tube is composed of four straight lines. The stress-strain relation of core concrete is a model in the one dimensional shape.
钢管采用一维四段直线的应力-应变关系，混凝土采用以一维形式表达、考虑钢管与混凝土相互作用的应力-应变关系。
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