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Therefore, the moist potential vorticity analysis associated with the mesoscale convective system was researched in the paper, so as to reveal the moist potential characteristics of mesoscale convective system in typhoon circulation. The results showed that, during the generation stage, convective instability characterized by MPV1 was a favorable condition for forming MCS, while the vorticity which was caused by the slantwise isentropic surface and the vertical shear of the horizontal wind characterized by MPV2 was an inspiring mechanism. The specific process was that, the atmosphere exhibited the feature of strong convective instability at the low level of convection areas and the southeast areas, which included plenty of erratic energy. The slantwise ascended the stream transfer the erratic energy to northwest, where the stratification stability was small. As decreased, the cyclonic vorticity increased. On the other hand, the vorticity caused by the slantwise isentropic surface and the vertical shear of the horizontal wind inspired the release of convective instability and as a result that the MCS formed. During the development stage, the cyclonic vorticity increased quickly with the persistent decreasing of . Meanwhile, the inclination of isentropic linewas bigger than the absolute momentum line at middle level, which exhibited the feature of conditional symmetric instability , then the conditional symmetric instability was forced to release by the vorticity resulted from the slantwise isentropic surface and the vertical shear of horizontal wind, and the MCS developed.

结果表明，在对流形成阶段，MPV1即对流不稳定为MCS的形成提供背景不稳定条件，由MPV2即湿等熵面的倾斜和水平风的垂直切变而引起的涡旋发展作为强迫机制：MCS形成的区域及东南区域中低层是强对流不稳定层，蕴含丰富的不稳定能量，倾斜上升运动把对流不稳定区具有强不稳定能量的暖湿空气向西北中层的中性层结区输送，由于的减小，气旋性涡度增强，有利于形成对流，另一方面，由于湿等熵面倾斜和低空急流加强而引起的涡旋发展作为一种强迫机制激发对流不稳定能量得到释放，从而形成对流；在对流系统地发展阶段，由于低层的对流不稳定性进一步减弱，进一步减小，气旋性涡度进一步增强，有利于MCS的增强，中层等θe 线的倾斜度比绝对动量M 等值线的倾斜度大，对应有条件对称不稳定区域，满足条件对称不稳定条件，在湿等熵面倾斜和台风低空急流作用下引起的涡旋发展强迫对称不稳定能量释放，从而使得对流得以维持和加强。

And when we are forced by untoward events to consider them, find it easy to condone them.

据我所知，我们这样做是正确的。

It didn't occur to him at the time, he says, that he could have stayed away from Hank Paulson's famous confab, in which the Treasury secretary forced the nation's nine biggest banks and investment banks to accept infusions of government capital.

他说，当时他没想到，自己应当远离鲍尔森那次著名的会议。在那次会议上，鲍尔森迫使美国九家最大的银行和投资银行接受政府注资。

In this letter, he was forced to confront several problems.

在这封信里，他被迫面对很多个问题。

But I came to see that this intervention had a lucky side: because it hurt my social capital online, it forced me to rethink some of my everyday assumptions. I became a stronger confronter to any kinds of censorship from then on.

不过我觉得那次被封也有好的一面：它损害了我的网络社会资本，并迫使我重新审视以往的一些传统的看法，打那以后，我对于一切的审查制度都变得愈加痛恨。

Will you be forced to travel congested side streets or is there a more free-flowing route to the office?

在去公司的路上，你是愿意被迫挤上拥塞的小路，还是想有一条更通畅的路？

In New England, Congregationalist churches worked so closely with civil governments in every colony except Rhode Island that no other type of church was allowed in the area until 1690, when English authorities forced them to tolerate other religious groups.

在新英格兰， congregationalist教会如此密切地与民间，政府在每一个殖民地，除罗得岛，没有其他类型的教会被允许在该地区，直到1690年，当英国当局强迫他们容忍其他宗教群体。

In New England , Congregationalist churches worked so closely with civil governments in every colony except Rhode Island that no other type of church was allowed in the area until 1690 , when English authorities forced them to tolerate other religious groups .

教会如此密切地与民间，政府在每一个殖民地，除罗得岛，没有其他类型的教会被允许在该地区，直到1690年，当英国当局强迫他们容忍其他宗教群体。

In this paper the problem of unstable character of forced-steering bogies with low wheel tread conicity is studied.

本文深入探讨了迫导向转向架所具有的低锥度失稳问题。

And in a world where children face such horrors as forced labour, sex trafficking and military conscription

在一个还充斥着强迫儿童劳动，性交易，做童军的世界里

This paper discusses design and realizable methods of remote test output interface from logical design angle.

本文从逻辑设计的角度讨论遥测输出接口的设计及实现方法。

This also 星体投射plies to buildings, structures and geological features.

这也适用于建筑物和地质特征。