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近似模型
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  “近似模型”译为未确定词的双语例句
    In this paper, we use simple point source model-shear dislocation model andapproximately regard the earth crust as horizontally layered medium that is transverse isotropy.
    利用剪切位错点源作为震源模型,采用横向均匀的水平层状介质模型作为地壳近似模型,使用F-K波数积分法计算格林函数并拟合理论地震图。
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    In this paper, two approximate computations of the generalized reflectivity of P-SV waves in the transition layer are presented. In one computation, the transition layer medium is taken as a series of layered mediums.
    本文导出计算过渡层介质中P-SV波广义反射系数的两种近似算式:一种以层状介质作为过渡层的近似模型;
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    The suitability of the thermal offset and permafrost table temperature model generally adopted abroad is discussed in this paper, and the model is applied to the eight frost soil sections along the line of the Qinghai-Tibetan Highway, where ground temperature is monitored.
    主要讨论国外普遍采用的温度位移和多年冻土顶板温度近似模型的适用性 ,并在青藏公路沿线 8个冻土地温监测断面中应用模型进行计算 .
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    The reliability index of the approximate Kriging function was calculated,based on the reliability computation methods.
    利用可靠度计算的方法,对已建立的Kriging近似模型进行了可靠度计算.
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  approximate model
On the basis of an approximate model of filtration with drainage washings of a soil layer with a water-impermeable base [1], shown schematically in Fig.
      
In [1], the present author investigated an approximate model of two-dimensional flow in the case of leaching of soil in the presence of an impermeable layer when the depression curve is replaced by a fixed horizontal boundary.
      
An approximate model of the flow is constructed and an analytic solution is obtained for the location of the boundary of the multicycle jet.
      
A brief description is given of the approximate model for the calculation of temperature fields, which simplifies the processing of experimental data
      
Theoretical models of heat transfer by radiation through a vapor gap under conditions of film boiling of liquid are treated, namely, a general wave model for a gap of arbitrary thickness and an approximate model of geometrical optics.
      
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In this paper, two approximate computations of the generalized reflectivity of P-SV waves in the transition layer are presented. In one computation, the transition layer medium is taken as a series of layered mediums. In the other computation, a numerical calculation is carried out directly for the transition layer model. The numerical results are discussed.

本文导出计算过渡层介质中P-SV波广义反射系数的两种近似算式:一种以层状介质作为过渡层的近似模型;另一种是直接由过渡层模型用数值近似方法计算。文中对比分析了数值试验结果。

The modified version of the parabolic mild-slope equation is derived by the variational principle. The modified parabolic mild-slope equation is shown to be capable of describing for wave propagation over a bed consisting of substantial variations in water death and to predict wave refraction-diffraction with three-dimension topography. The modified parabolic mild-slope equation has been compared with parabolic mild-slope equation. Numerical examples demonstrate the practical applicability of the modified parabolic...

The modified version of the parabolic mild-slope equation is derived by the variational principle. The modified parabolic mild-slope equation is shown to be capable of describing for wave propagation over a bed consisting of substantial variations in water death and to predict wave refraction-diffraction with three-dimension topography. The modified parabolic mild-slope equation has been compared with parabolic mild-slope equation. Numerical examples demonstrate the practical applicability of the modified parabolic mild-slope equation.

对线性水波的折射一绕射问题应用变分原理,对非等深、具有缓坡和不连续的底被导出了一种修改的抛物型缓坡方程近似模型,可预测三维地形上波浪的折射一绕射.同抛物型缓坡方程的线性方程进行了对比.通过数值模拟方法进行数值求解,表明本方法可用于地形条件下的波浪折射一绕射问题.

The thermal offset and permafrost table temperature are important energy indexes in studying permafrost active layers and frost soil environment. The suitability of the thermal offset and permafrost table temperature model generally adopted abroad is discussed in this paper, and the model is applied to the eight frost soil sections along the line of the Qinghai-Tibetan Highway, where ground temperature is monitored. Calculation indicates that the thermal offset and permafrost table temperature similar model...

The thermal offset and permafrost table temperature are important energy indexes in studying permafrost active layers and frost soil environment. The suitability of the thermal offset and permafrost table temperature model generally adopted abroad is discussed in this paper, and the model is applied to the eight frost soil sections along the line of the Qinghai-Tibetan Highway, where ground temperature is monitored. Calculation indicates that the thermal offset and permafrost table temperature similar model can be used to forecast low temperature permafrost (annual mean ground temperature lower than \{-1.5℃\}). However, for high temperature permafrost ( annual mean ground temperature higher than \{-1.5\} ℃) this model is unsuitable.

温度位移和多年冻土顶板温度是活动层研究和冻土环境研究中重要的能量指标 .主要讨论国外普遍采用的温度位移和多年冻土顶板温度近似模型的适用性 ,并在青藏公路沿线 8个冻土地温监测断面中应用模型进行计算 .结果表明温度位移和多年冻土顶板温度近似模型能够被用于预报低温多年冻土 (年平均地温低于 - 1.5℃ ) ,对于高温多年冻土 (年平均地温高于 - 1.5℃ )该模型不适用 .

 
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