急流地

The first thing to see, looking away over the water, was a kind of dull line -- that was the woods on t'other side; you couldn't make nothing else out; then a pale place in the sky; then more paleness spreading around; then the river softened up away off, and warn't black any more, but gray; you could see little dark spots drifting along ever so far away -- trading scows, and such things; and long black streaks -- rafts; sometimes you could hear a sweep screaking; or jumbled up voices, it was so still, and sounds come so far; and by and by you could see a streak on the water which you know by the look of the streak that there's a snag there in a swift current which breaks on it and makes that streak look that way; and you see the mist curl up off of the water, and the east reddens up, and the river, and you make out a log-cabin in the edge of the woods, away on the bank on t'other side of the river, being a woodyard, likely, and piled by them cheats so you can throw a dog through it anywheres; then the nice breeze springs up, and comes fanning you from over there, so cool and fresh and sweet to smell on account of the woods and the flowers; but sometimes not that way, because they've left dead fish laying around, gars and such, and they do get pretty rank; and next you've got the full day, and everything smiling in the sun, and the song-birds just going it!

往 水面上望去，首先看到的是灰蒙蒙的一条线——那是河对岸的树林子——别的便什么也看不清——接着是天空中有一点儿鱼肚白；然后鱼肚白多了些，逐渐朝四周散开去；接下来，远处河水的颜色淡了些，不是那么黑了，而是灰灰的了。更远处，可以看到小小的黑点子在漂过来——那是些载货的驳船之类。还有黑黑的一长条——那是木筏子。有时能听到长桨吱吱地响，或者一些杂音。四周这么寂静，声音又来自很远的远方。过了一会儿，你看到一道水纹。凭了水纹的模样，你知道那里有一块礁石，急流朝着它冲过去，流水飞溅，成了这个模样。你看到，雾气袅袅上升，离开水面，东方红了起来，河面红了起来。你可以看到对岸河边树林子边上一处原木搭成的小屋，那可能是一个木材场，在那里堆着的一堆堆木材，中间却是空的，容得狗钻来钻去，为了能叫人家上当①。然后微风轻拂，从河上一阵阵吹来，那么凉凉的，那么清新，闻起来那么甜美，这是全凭了那些树林子和那些鲜花的缘故。可有时候也并非全是如此美妙。

The melted snow rushed down beneath the mist,the river ice began cracking and moving forward,and the turbid,foaming torrents began flowing more rapidly;the following Monday,from evening on,the mist dissolved,the clouds broke up into fleecy （松软的、蓬松的、羊毛似的） cloudlet s,the sky cleared,and the real spring had come.

融化了的雪水在雾下面流动，河上的冰块开始碎裂，向前漂浮。泛着泡沫，混浊不清的急流更加快速地奔腾。复活节一周后的第一天，从傍晚开始雾就散开了，云簇化作朵朵卷曲的小白云，天空晴朗了，真正的春天来临了。

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。

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。

Race of powerful southwest field, low altitude, to Yingdede area in a steady stream offerred enough lunt; ceaselessly close ground layer is in low chamfer brim, force is not steady energy grow in quantity, the generation that is durative strong precipitation was offerred spark enoughly mechanism.

强劲的西南风场、低空急流，向英德地区源源不断地提供了充足的水汽；近地面层处于低槽边缘，位势不稳定能量增多，为持续性强降水的产生提供了足够的触发机制。

On the basis of forefathers study, the interaction of the shock waves of torrent, and that of rarefaction to shock wave have been discussed in detail in the useof the concept of the curve.

在前人研究的基础上，通过引入曲线的概念，分别对急流冲击波的相互作用，稀疏波与冲击波的相互作用进行了比较详细地讨论。

With grim determination he clung to the boulder with his right hand as he noticed the turbid white wake that gurgled from around his shoulders and the soles of his feet.

他死死抓紧了右手攀住的那个石棱，感到急流正在他的两个肩头和两只脚掌那儿哗哗地激起浊白的浪花。

In my viewing the Sea from that Hill where I stood, I perceiv'd a strong, and indeed, a most furious Current, which run to the East, and even came close to the Point; and I took the more Notice of it, because I saw there might be some Danger; that when I came into it, I might be carry'd out to Sea by the Strength of it, and not be able to make the Island again; and indeed, had I not gotten first up upon this Hill, 1 believe it would have been so; for there was the same Current on the other Side the Island, only, that it set off at a farther Distance; and I saw there was a strong Eddy under the Shore; so I had nothing to do but to get in out of the first Current, and I should presently be in an Eddy.

从我所站的小山上向海上放眼望去，看见有一股很强很猛的急流向东流去，差不多一直流到那岬角附近。我进一步仔细地观察了一下，因为我发现，这股急流中隐藏着危险。如果我把船开进这股急流，船就会被它冲到外海去，可能再也回不到岛上了。说真的，假如我没有先爬上这座山观察到这股急流，我相信一定会碰到这种危险的。因为，岛的那边也有一股同样的急流，不过离海岸较远，而且在海岸底下还有一股猛烈的回流；即使我能躲过第一股急流，也会被卷入回流中去。

Apart from getting close with the variety of marine animals, Headland Rides in the park are worthwhile to try. For instance, the Hong Kong's largest Roller Coaster, The Dragon, the Flying Swing which lifts as high as 7 metre in a wave-like motion, as well as the Abyss Turbo Drop that drops you straightdown in 5 seconds. Moreover, visitors are encouraged to take a ride on the twisting Mine Train, Raging Rive and Space Wheel.

除了观赏令人目不暇给的鱼类外，园内各种新奇刺激的机动游戏也都值得一试，如：全香港最大的云霄飞车—「疯狂过山车」、在离地七米的高空，享受「飞天鞧千」的环回乐趣以及感受「极速之旅」所带来的超级快感等……另外，於「急流天地」里，游客更可一试在矿山中此起彼落的「越矿飞车」、以超过 5 8 千米的时速，於急流俯冲而下的「滑浪飞船」和「太空摩天轮」。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。