查询词典 parabolic

The results are helpful to design parabolic collimators.

这些结果有助于准直仪的设计。

Efficiency and gain of a parabolic antenna directly depend on the degree of accomplishing of these demands.

抛物面天线的效率和增益完全取决于实现这些要求的程度。

Parabolic disc for higher degree of control.

抛物线阀瓣，适用于更大程度的控制。

The hyperbolic and parabolic travel time of the reflection in layer media are presented in expression of matrix with paraxial ray theory.

利用旁轴射线理论给出了层状介质反射波的双曲线旅行时和抛物线旅行时的矩阵表达式。

Stratum hurting ; parabolic partial different equation ; difference equation

地层伤害；抛物型偏微分方程；差分方程

A class of systems of impulsive delay parabolic partial differential equations with nonlinear diffusion coefficient is considered.

考虑一类具非线性扩散系数的脉冲时滞抛物型偏微分方程组，利用Green公式、垂直相加法和脉冲时滞微分不等式，获得了该类方程组在Robin边值条件下所有解振动的充分判据。

In the second section, some analyses for large time behavior of the solutions of the models of scalar equation for reactors with periodic flow reversal are given by the maximum norm estimation of parabolic equations.

利用抛物型方程的最大模估计证明了单方程模型当关于单调递减时其对应的循环定态解的存在性，并且当时，模型解会趋于其对应的循环定态解。

On the basis of the generalized phase integral approximation and the beam displacement ray mode theory, which are both developed by Chinese acousticians, a fast method for normal modes analyzing including the leaky modes is presented. The application of this method in the coupled mode parabolic equation theory gives an efficient algorithm for both the range dependent problems (CMPE2D) and the three dimensional problems (CMPE3D).

在我国独创的广义相积分理论和波束位移射线简正波理论的基础上，提出了一种可以快速而精确地求解简正波本征值的算法，并将该算法应用于简正波-抛物方程理论，从而实现了二维(CMPE2D)和三维(CMPE3D)声场的快速预报。

In this paper,we study the oscillation properties of solutions to the following problems of three classes of delay parabolic equations of neutral type.where Ω is a bounded domain in R~n with a piecewise smooth boundary ?

本文研究了三类中立型时滞抛物方程：解的振动性。其中G=Ω×(0，+∞)，Γ=Ω×0，+∞，ΩR~n是有界域，边界Ω逐片光滑，Δ是拉普拉斯算子，？

Over the years the company committed to the mill left the field of research and production equipment, production of the ZP Automatic grinding parabolic polished unit is the professional Western-style stainless steel tableware unit, 13 from Taiwan's single five models, namely throwing pieces of the mill was processing Plane, convex and concave corner of the surface, to be completed from the sand to rough play, throwing all the fine process.

公司多年来致力于抛磨领域的设备研究与制作，生产的ZP系列自动抛光机组是抛磨西式不锈钢餐具的专业机组，由五种机型十三台单机组成，分别抛磨被加工件的平面、凸面、凹面转角、曲面部分，可以完成从打砂到粗、精抛的全部工艺过程。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。