- 变量
- variable: adj. 1.易变的，变化无常的，无定的 (opp. c ...
- quantity: n. 1.量 (opp. quality); 分量，数量 ...
- quantity variable: 数量变数
- periodically variable quantity: 周期性变量
- variable order-quantity system: 可变订货量系统
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variable quantity中文什么意思
- 变量
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例句与用法
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- 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。 - 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。
英文释义
名词- a quantity that can assume any of a set of values
同义词：variable