小坡

The results showed that the flow reattachment distance in the lee side of various dune models are ranged from 4.8H to 10.8H depending on different stoss slopes, the maximum of flow reattachment distance was found in the lee side of the transverse dune with a 15° stoss slope angle.

实验结果表明，当来流风速垂直于沙丘脊线时，沙丘背风侧的气流重附距离介于4.8H～10.8H之间，最大重附距离出现在迎风坡坡度为15 的沙丘背风侧；沙丘迎风坡坡度是控制背风侧气流重附距离的主要因素，而自由风速对气流重附距离的控制作用较小。

This paper gives a presentation of the 3－ D limit analysis method developed on the basis of the plasticity mechanics upper limit theorem for slope stability analysis, and of the stability safety factor of the Xiaowan arch abutment calculated using this method which could give stability analysis results conforming to the actual conditions.

本文首先介绍了一个建立在塑性力学上限定理基础上的边坡稳定分析三维极限分析方法，并使用这一方法计算小湾拱座的稳定安全系数，获得比较符合实际的稳定分析成果。

The digital watershed model of Yellow River is based on digital elevation model and the classification theory of drainage network.

黄河数字流域模型以DEM数据及其存取系统为依托，以流域分级理论为依据，将坡面、小流域、区域、全流域四个层次的模型整合成一个完整的流域整体模型。

Aerators are widely used in flood discharge tunnel s and spillways to prevent the cavitation damage of the structures.

对高水头、大单宽流量、低佛氏数、小底坡长明流泄洪洞，在反弧段末端采用常规的掺气坎往往难以取得理想的掺气效果，同时，反弧段下游边墙易出现空蚀破坏。

Hangu Town, a small key town developed by Jiulongpo District of Chongqing, has greatly developed ecotourist agriculture in recent three years. Ecotourist agriculture, as a new industry, has a wide development prospects and it is of great value to the society and economy.

含谷镇是重庆九龙坡区的一个重点开发的小城镇，近三年来在大力发展生态旅游农业方面迈出了重要的一步，它作为一种新型的产业，具有广阔的发展前景，有着很大的社会价值和经济价值

The results showed that the spatial distribution range of soil fertility in Qinling forest area on south slope was soil pH volue 5.97～6.89,organic matter 6.6～50.1 g·kg~-1, total N 0.5～3.8 g·kg~-1 ,available N 33.6～257.3 mg·kg~-1,available P 0.81～5.8 mg·kg~-1,available K 38.9～262.4 mg·kg~-1,clay particle content 11.3%～18.1%,capacity of exchangeable base 68.5～310.2 mmol·kg~-1 respectively; The spatial variation degree of available P, organic matter, and total N was big,whereas clay particle content and active acid pH value was small;the spatial variation degree of soil pH value, organic matter, available P, clay particle content, and capacity of exchangeable base decreased with the deep of soil,whereas soil total N、available N, and available K increased.

结果表明，秦岭南坡土壤肥力指标在整个土壤剖面空间分异范围分别为：土壤pH值5.97～6.89，有机质含量6.6～50.1 g·kg-1，土壤全N含量0.5～3.8 g·kg-1，碱解N含量33.6～257.3 mg·kg-1，速效P含量0.81～5.8 mg·kg-1，速效K含量38.9～262.4 mg·kg-1，粘粒含量11.3%～18.1%，阳离子代换量68.5～310.2 mmol·kg-1；其空间分异程度以速效P、有机质和土壤全N含量较大，土壤粘粒含量和土壤pH值较小；随着土层的加深，土壤pH值、有机质、速效P、土壤粘粒含量和阳离子代换量空间分异程度减小，而土壤全N、碱解N和速效K含量空间分异程度增大。

Memoryless quasi Newton method ; slope stability ; the most dangerous slip surface ; the minimum safety factor

无记忆拟牛顿法；边坡稳定性；最危险滑动面；最小安全系数

In the first case, the minimum overburden equals 0.5656 times of water head of the tunnel, which is consistent with the modified Norway rule.

山体的2个坡角都为45°时，隧洞的最小覆盖厚度是水头高度的0.5656倍，这与修正的挪威准则给出的结果相同。

Equal, the other is that the two slopes are perpendicular to each other. In the first case, the minimum overburden equals 0.565 6 times of water head of the tunnel, which is consistent with the modified Norway rule.

山体的2个坡角都为45°时，隧洞的最小覆盖厚度是水头高度的0.565 6倍，这与修正的挪威准则给出的结果相同。

Short stories and thrillers suit the turbo-charged aries.

白羊座喜欢快速愉快的阅读，适合阅读短篇小说或恐怖小说，最喜欢艾伦-坡的小说和史蒂芬-金的一些篇幅短小的文章。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。