急流的

Results show that existence from strong convergence of water vapor and the conditional convective instability in the middle and low troposphere probably provided the suitable environment for heavy rainfall.

分析表明，对流层中低层水汽的大量集中以及对流不稳定条件的存在可能对此类系统发展提供了有利环境，对其启动的机制作了初步的讨论，认为地形的动力强迫和地面冷锋以及低空急流扰动可能对此类系统的发生发展起了触发作用。

In DMMCS, there is an alternative distribution of inertial instability column and inertial stability column, at the west and south, there lie negative CVV columns, while negative CVV column is beneficial to deep moist convection.(4) The strong slantwise convection induced by inertial instability, baroclinic instability and conditional symmetry instability will enhance the upper level southerly component. Because of the appearance of the compensated downdraft at the low level of the south side of DMMCS, the low level southerly is intensified, the enhancement of upper- and low-level cores are in favor of the development of DMMCS. And that will do favor for the reinforcement and maintenance of inertial instability, baroclinic instability and conditional symmetry instability, it is a positive feedback process.

深湿对流系统中高层西侧为负MPV2 柱，东侧为正MPV2 柱；(3)深湿对流系统中惯性不稳定柱与惯性稳定柱相间分布，西侧为负CVV 柱，东侧为正CVV 柱，负CVV 柱对深湿对流起激发作用；（4）惯性不稳定、湿倾斜不稳定和条件不稳定产生强的倾斜式对流，而强的倾斜式上升运动加强了深对流系统北侧高层的南风分量，因深对流系统南侧低层出现补偿性下沉气流，因而低层南风加强，高低空急流中心的加强会进一步加强对流的发展，使得惯性不稳定、湿倾斜不稳定和条件不稳定增强和维持，这是一个正反馈过程。

However, if there is no way but only the wisdom, as will be driving, navigable, they themselves can control the reins can show off too, such as strings, can Quant shake like wind, racing along a flat plain or a pier, as if in their own palm of your hand, but an experience to narrow the Taihang Mountains, rapids rapids of the storms, will do nothing to screaming in pain, these people do not capsize, do not overturn the really very small.

但如果没有方法而只有智慧，就像会驾车、行船的人，自己炫耀能把缰绳控得如弦，能把船浆摇得像风，驰骋在平坦的原野或者码头上，好像在自己的手掌上，但一遇到太行山的羊肠小道、急流险滩的大风大浪，都会束手无策地呼天抢地，这些人不倾覆、不翻车的实在太少了。

As the application of the intermediate models is concerned, the works applying the intermediate models to investigate the topographic boundary layer, frontogenesis and low-level frontal structures, and the boundary layer jet are summarized in this article. It is mainly focused on the dynamic characteristics of the Ekman layer and its effect on the low-level structure and circulation of the weather systems illustrated by the models. It is shown that the intermediate boundary-layer models have great potential in illustrating the low level structures of the weather and climate systems as they are coupled with the free atmospheric models.

对于这些Ekman边界层近似理论模型的进一步应用问题，主要回顾和总结了利用上述模型探讨地形边界层结构、大气锋生过程、低层锋面结构和环流以及边界层日变化、低空急流形成等动力学问题的研究，并对这些研究所揭示的Ekman层动力学特征及其对自由大气低层运动的影响进行了分析，结果表明，这些Ekman边界层近似模型可以较好地揭示大气边界层动力学特征，在大气边界层动力学及其与自由大气相互作用的研究上具有重要价值。

In the situation of shock wave, the interaction caused by the situation of one shock wave catching up with another is qualitatively analyzed with the result of the wave form: reflection rarefaction and incidence shock wave.

对急流冲击波的情况，从定性的角度分析了一个冲击波追赶上另一个冲击波后的相互作用，得到可能产生的波形，即反射的稀疏波和入射的冲击波。

In this Place also I had my Grapes growing, which I principally depended on for my Winter Store of Raisins; and which I never fail'd to preserve very carefully, as the best and most agreeable Dainty of my whole Diet; and indeed they were not agreeable only, but physical, whole-some, nourishing, and refreshing to the last Degree.

我的乡间别墅正处于我泊船的地方和我海边住所的中途，因此每次去泊船处我总要在这里停留一下。我常去看看那条独木舟，并把船里的东西整理得井井有条。有时我也驾起独木舟出去消遣消遣，但我再也不敢离岸太远冒险远航了，唯恐无意中被急流、大风或其他意外事故把我冲走或刮走。然而，正在这时我生活却发生了新的变化。

The structure of atmosphere and the evolution of the subtropical jet and subtropical high during the period May 22-July 3, 1958, are studied by means of tropopause map.

本文利用1958年5月下旬至7月初北半球的对流层顶图，分析这段时期内大气的结构，以及副热带急流和副热带高压的变化，得到以下一些事实：(1)在初夏大气的三折结构也是很清楚的。

But the life is just alike of the sea, it never lets us keep a slack hand. Underneath the calm surface there's some riffles. After the calmness, there comes the scenery and for the people, they always sense the danger and fear at the bump of the wave. When they reminds of their ignorance they need to fight back by the light of nature.

可生活如海啊，是不容让人懈怠的，平静的水面下暗藏的是急流，平静过去，又将是风景，而人往往也是在风浪的颠簸中才意识到危险感到恐惧，才想起自己的疏忽，才本能地需要抗拒。

But the life is just alike of the sea, it never lets us keep a slack hand. Underneath the calm su***ce there's some riffles. After the calmness, there comes the scenery and for the people, they always sense the danger and fear at the bump of the wave. When they reminds of their ignorance they need to fight back by the light of nature.

可生活如海啊，是不容让人懈怠的，平静的水面下暗藏的是急流，平静过去，又将是风景，而人往往也是在风浪的颠簸中才意识到危险感到恐惧，才想起自己的疏忽，才本能地需要抗拒。

The numerical model is capable of handling both subcritical, supercritical and transcritical flow, free surface and surcharged flow.

为了验证所建立的数学模型的可行性，本文计算了多个具有解析解或试验结果的算例，并对利用不同计算参数获得的计算结果进行了分析比较，结果表明：明满流模拟中，采用较小的狭缝宽度和较小的空间步长能够提高解的精度；跨临界流模拟中，采用删减对流项法模拟急流需要补充自由出流水位流量关系作为下游边界条件等。

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。