method of characteristic curves meaning in English
特者法
特征线法
Examples
- According to the load and pipeline characteristics of heating systems , puts forward the principle of selecting circulating water pumps and the fitting method of characteristic curves
摘要针对供暖系统的热负荷及管路特性，给出了循环水泵的选择原则及其特性曲线的拟合方法。 - In the first part , by using the method of characteristic curves for solving linear partial differential equations , all invariant algebraic surfaces for three nonlinear systems are obtained
第一部分，利用求解线性偏微分方程的特征曲线法，得到了三个系统的所有不变代数曲面。 - In section 1 , the introduction and statement of the main results are stated ; in section 2 , the main tool of this part using is narrated , that is , the method of characteristic curves for solving linear partial differential equations ; in section 3 , rigorous proof is given
本部分由三节组成，第一节是引言和获得的主要结果；第二节介绍了本部分所使用的主要工具，即，解线性偏微分方程的特征曲线法；第三节证明了这些主要结果。 - The main result of this part is the following , by using the method of characteristic curves for solving linear partial differential equations , the whole classification of the integrals of motion of the reduced three - wave interaction system is obtained with the condition of some parameters . rigorous proof is given . this part consists of three sections
本部分的主要结论如下，应用解线性偏微分方程的特征曲线法研究了约化的三波相互作用系统的运动积分，给出了在一定参数条件下系统所有的运动积分，并严格证明了这些结论。 - According to the supply system composed by parallel connection water pump , many kinds of operation proposals in a single pump were put forward to provide the greatest possible flow on both sides of the demarcation point in the scope of the flux changes ; identified the system of pumps , electromotor , speed governor imitate method of characteristics curve of the power device and its rotating speed , efficiency , energy consumption calculation under different condition ; the analytical methods used for the operational plan for comprehensive evaluation of the economic and safety and optimal results
摘要针对由并联水泵组成的供水系统，提出了在以单泵可能提供最大流量为分界点的两侧流量变化范围内具有多种运行方案；确定了在不同工况下，该系统中水泵、电机、调速器特性曲线的拟合方法及其各动力装置中转速、效率、能耗的计算式；采用解析的方法对各种运行方案进行了经济性和安全性综合评价，并给出最优结果。