折线函数 meaning in English
polygonal function
Examples
- The design schematic diagram of the system and the principle designing curves of polygonal functions are given , the transfer functions in some relative segments of steam turbine and boiler coordinated control system are deduced ,
给出了系统的设计原理图，以及折线函数的原则设计曲线，推导出了机炉协调控制系统中有关环节的传递函数，分析了系统的工作原理。 - First , the working principles of the combustion control system of marine main boiler in present use and its disadvantages are discussed in the paper ; in the light of the structure and motion traits of marine main boiler , the combustion control systems of single and double cross amplitude limits are designed . at the same time , the schematic diagram of system and recovery curves of some relative parameters are given , the system working principles and its advantages and disadvantages are discussed . based on the combustion control system of dual - crisscross amplitude limit , by selecting the independent variable , the fixed offset is improved into variable offset , the combustion control system of variable offset dual - crisscross amplitude limit is designed
首先讨论了目前船用主锅炉燃烧控制系统的工作原理及存在的不足；针对船用主锅炉的结构及运行特点，设计了单交叉限幅燃烧控制系统和双交叉限幅燃烧控制系统，同时给出了系统原理图及有关参数的过渡过程曲线，讨论了系统工作原理及优缺点；在双交叉限幅燃烧控制系统的基础上，将固定偏置经过自变量的选取，改进成变偏置，设计了变偏置双交叉限幅燃烧控制系统，给出了系统原理图及有关参数的过渡过程曲线，同时也给出了空气压力和燃油流量正负偏置函数与变偏置折线函数的关系式。 - Firstly , in the reproducing kernel space , the spline function is discussed and its equivalent relations are gived ; we prove that the 2 - th differential operator interpolation spline function in the space can be expressed not only by the reproducing kernels but also by polygonal functions . so it is easy to prove its best approximation properties in theory and is convenient for numerical calculation in applications , too
首先，在再生核空间中讨论样条函数，给出其等价性条件；证明了空间中的一个二阶微分算子插值样条既可由再生核函数表示又可由折线函数表示，这不仅在理论上便于获得此种插值样条函数的最佳逼近性质，而且在应用上也便于数值计算。