对拟合方程进行方差分析并在此基础上利用偏拟合平方和的检验确定拟合多项式的最佳阶数。
The optional polynomial order is selected through the test of the partial fitting square sum on the basis of the variance analysis of the fitting equation.
在简述阶式制冷工艺、混合制冷工艺和膨胀制冷工艺的基础上，介绍了上述3套国内液化天然气工厂的工艺原理。
With describing the cascade refrigeration technique, the mixing refrigeration technique, and the expanding refrigeration technique, the working principle of the above 3 LNG plants is introduced.
利用“通量阶式递增法”测定了两种膜组件的临界通量，在此基础上考察了次临界通量下的运行特性。
Critical flux region for two membrane modules was measured by using "flux step-wise" method, and then the operating characteristics at sub-critical flux were investigated.
利用“通量阶式递增法”测定了两种膜组件的临界通量，在此基础上考察了次临界通量下的运行特性。
Critical flux region was measured by using "flux step-wise" method, and the the operating characteristics at sub-critical flux were investigated.
此外，由于模型的动力方程具有二阶时间导数项，因而应用本文模型的结构—基础—土系统可以采用显式时间积分求解。
Moreover, due to the dynamic equations of LPMs with second-order derivative terms in time, the resulting structure-foundation-soil system can be solved by an explicit time-integration method.
此外，由于模型的动力方程具有二阶时间导数项，因而应用本文模型的结构—基础—土系统可以采用显式时间积分求解。
Moreover, due to the dynamic equations of LPMs with second-order derivative terms in time, the resulting structure-foundation-soil system can be solved by an explicit time-integration method.
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