Secondly, the phase planes were introduced to find qualitatively the threshold of dynamical behavior, and the influences of parameters change on saddle point were discussed.

然后，用相平面法来对简化模型的阈值特性进行定性分析，给出了参数变化与二维简化模型中的鞍点电压值变化之间的关系。

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The phase change behavior of polyethylene glycol(PEG) and acetate cellulose(CDA) blends prepared from mixed solution of acetone was investigated by means of DSC and TMA.

用静态热机械分析（TMA）、差示扫描量热（DSC）等方法研究了不同分子量聚乙二醇（PEG）与二醋酸纤维素（CDA）经溶液共混形成固态共混物的相变行为和热力学性质。

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An experimental research has been taken on heat efficiency, startup behavior, isothermal characteristics of a vacuum phase change heating system using a new kind of compound working medium.

利用新型复合工质对真空相变供热系统进行了热效率、启动特性、等温特性的实验研究。

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The model shows that lasting weight loss takes a long time to achieve and suggests that more effective weight loss programs might be undertaken in two phases: a temporary, more aggressive change in behavior at first, followed by a second phase of a more relaxed but permanent behavioral change that can prevent the weight regain that afflicts so many dieters despite their best intentions.

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