variable quantity造句
例句与造句
- He now called a variable quantity a fluent .
他现在把变量叫做流。 - He now called a variable quantity a fluent and its rate of change, the fluxion .
他现在把变量叫做流，变量的变化率叫做流数。 - How to vary the two variable quantity of the buck - boost basic circuit on the high frequency switching and whether or not their varying laws are fit for their theoretical conclusion
高频开关下的buck - boost电路中各个变量的动态变化如何，其变化规律是否与理论上的推导一致。 - Secondly , agreement between the result from the mentioned eigenvalue arithmetic and the result from numerical calculation in the airfoil differential equation with runge - kutta method which obtain the trend of physical variable quantity demonstrate the fact that the assumed model and the given equations are valid
其次，通过用龙格?库塔的数值方法对微分方程进行迭代，所求出的系统各振动量变化规律和上述算例的特征值对比，结果是一致的。这就验证了建模的合理性和方程推导的正确性。 - The slope geometry is variable quantities , and the reliable safety and reliability are main limiting factors . according to the above factors , a optimized model for designing high loess slope is established . this model ' s concept is precise , and its physical meaning is confirm , people who do designing work can see this model as a means
最后，为了使边坡设计获得最佳工程效果，本文在崔政权建立的优化公式： c = a + pf ? b的基础上，全面考虑施工造价和风险造价，运用数学原理和优化理论，用费用?效益分析方法，以最小总期望造价为目标函数；以坡型、坡比为设计变量，以安全可靠为主要约束条件，建立了黄土高边坡的优化模型。 - It's difficult to find variable quantity in a sentence. 用variable quantity造句挺难的
- At first , buck - boost circuit is detailed analyzed and derived strictly in the theory , and on the base , the current of the inductance and the output voltage are analyzed elaborately . when the input voltage is the ac voltage with the nomal frequency , the two variable quantity are analyzed and some conclusions are concluded by means of equal length separation methods and introducing function methods and derivative - equation methods . and this is the basis of the next proceeding
首先，对buck - boost电路进行了严谨地理论推导，先对buck - boost电路在输入为直流电压时的工作情况进行了分析；在此基础上，对输入为工频交流电压时的电感电流、输出电压作了详细分析，利用等间距离散化方法、引入函数法、微分方程法分别对变量进行了推导和总结，为下一步工作奠定了理论基础。
