导出方程

Furthermmore, the jet central line equation is derived from experiment and theoretical analysis.

另外，通过试验和理论分析，还导出了射流中心线方程。

From Maxwells equations, the vectorial and scalar wave equations for 3D, 2D and 1D are given out one by one using the slowly varying envelope approximation.

从电磁场的Maxwell方程组出发，分别导出了缓变包络近似条件下矢量及标量波动方程的三维、二维、一维形式，然后对其横向和纵向数值处理方法分别作了介绍。

Then the principle equations of streamline in the general von Mises coordinate system are derived for the first time.

在三维流动情形，引入了两个流函数η和ζ，并通过广义von Mises变换，首次导出了坐标系下的三个流线控制方程。

In the second capter, we give the fundamental solution of the n-dimensional transport equation.

第二章导出了n维输运方程的基本解。

An inflation model that driven by rolling tachyon is investigated and its equation of density perturbations is derived.

我们研究了滚动快子驱动宇宙暴涨的可能性，导出了快子暴涨下的密度扰动方程。

Ch aracteristics of reduction condition in the mixed fluidized bed with iron ore an d coal was researched and a kinetic formula for calculating of iron ore reductio n speed with mixed sizes was deduced.

讨论了矿煤混合流化床还原条件的特点，导出了铁矿还原的动力学方程。

For the first time the concept of using a standing-wave method to analyze the Bragg resonators is proposed.

全面、系统地导出了轴对称渐变波导开放式谐振腔中高频场满足的普适方程，首次考虑了为前人所忽略的TM型寄生模式的影响，应用于渐变复合腔并分析了多种情况下这种影响的程度。

Based on a new three-dimensional topology-related grain growth rate equation proposed recently by MacPherson and Srolovitz, a set of analytical quasi-stationary grain size distributions were obtained.

以MacPherson-Srolovitz提出的三维个体晶粒长大拓扑依赖速率方程以及三维晶粒组织的晶粒尺寸--晶粒面数间的抛物线型统计关系为基础，导出了相应的描述三维准稳态晶粒尺寸分布的函数族。

This EOS has been used to correlate the saturated vapor pressure and liquid density for 33 pure liquids over a wide range of temperature.

在统计缔合流体理论的基础上，导出了一个新的三参数状态方程。

The weak form of the governing equations of coupled thermo-hydro-mechanical problems in porous media within the element is established on the basis of the Hu-Washizu three-field variational principle.

基于胡海昌-Washizu 三变量广义变分原理给出的多孔介质中热-渗流-力学耦合问题控制方程的单元弱形式，导出了单元公式。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。