在...情况下的

Based on the basic diffusion theory, the general model of the contaminant transport in the environment is presented.

然后从最基本的扩散理论入手，建立了污染物质在环境介质中传输的通用模型，再结合土壤这一特定的环境介质，对传输模型进一步深化，得出能准确地表达出污染物在各种土壤条件下的运移过程的数学方程，并给出了各种典型情况下的解析解。

Since theparabolic system is an approximation from the elliptic system under small ray angle,we may have reasons to question the result of the parabolic system under large rayangle.

由于抛物方程是椭圆方程在小掠射角条件下的近似，我们有理由对抛物系统在大掠射角情况下的考察结果的可靠程度保持怀疑。

The multicast routing problem that finding the minimum cost multicast routing tree with many QoS constraints may be formalized to Steiner tree problem in network, which is a NP-complete problem that an algorithm that finds a Steiner tree can not get the best solution in polynomial time.

寻找有多个QoS约束的最小代价组播路由树可以形式化为网络中的Steiner树问题，它是一个NP完全问题，在多项式时间内不能得到最优解，因此研究者所寻求的是一种次优的、在最差情况和平均情况下的性能都接近于最优的解决方案。

In this paper, reciprocal theorem method is generalized to solve the problem of bending of thick rectangular plates under hydrostatic pressure based on Reissner?s theory.

应用功的互等法求解基于Reissner理论厚矩形板的弯曲问题，给出了对边简支另两边固定边界条件下厚矩形板在静水压力作用下弯曲的封闭解析解，并给出了该种情况下的曲线图。

Considered the different losses from the fail report and misdecaration, the method of debris flow forecast under different losses is set up. This method makes the general average loss of the losses for fail report and misdeclaration to be minimum, and make up for the lower degree of accuracy of debris flow forecast in a certain extent.

本文考虑了泥石流漏报和误报两种错报情况下的不同损失，重点研究不同损失条件下的泥石流预报方法，建立了不同损失条件下的泥石流预报模型，使泥石流预报中错报造成的总平均损失达到最小，在一定程度上弥补了目前泥石流预报准确度较低的不足。

A method of real time dynamic weight during intersection measure of two unequality precision theodolites is presented.

分析了误差来源和典型情况下的误差情况，提出了在不等精度经纬仪交会测量中，实时确定两台光电经纬仪在解算结果中的权重，动态改变权值的方法。

Finally, the finite element analysis for the IT shaft of the driving system is fulfilled by using ANSYS 8.0 and the stresses and deformations curves of the Π shaft are obtained. The paper else gives a study on few underprops and a reasonable project about few underprops is obtained.

最后利用有限元分析软件ANSYS 8.0完成传动箱Ⅱ轴零部件静态有限元应力和应变分析，得到Ⅱ轴零件在受载情况下的应力应变图，并对各种支撑情况进行了研究，提出合理的径向轴承布置方案。

The results show that average 450 m2 foundation bed can be leveled a day,at most 600 m2 foundation bed a day.

介绍了基床悬吊刮道GPS定位整平工艺在长江口深水航道治理工程中的应用情况，着重介绍了工作原理、施工准备、施工步骤、技术要求和特殊情况下的施工问题。

On the basis of testing results, main cutting curves of wheat straw were given, under different cutting speeds of rotatory blade with different straw lengths, moisture centents cutting positions, different thicks knife edge, with and without shear bar.

得出粉碎刀片在不同切割速度下，对短秆、长秆、秸秆不同切割部位、秸秆不同含水率、不同刀刃厚度、有定刀和无定刀等情况下的切断率曲线。

But if we are trying so simulate "blueish light from the sky", then a point that is exposed to a lot of the sky will receive more light, than a point that is behind a bunch of other objects that are blocking (i.e."occluding") the skylight.

但是实际情况下，如果我们试图模拟&天空中的微蓝色光线&，那么一个位置更加暴露在天空下的点会接受到更多的光线，而一个隐藏在一堆别的物体下的点，（也就是说&被遮挡住&的点），会完全接受不到光线。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。