沙丘

The decreased threshold shear velocity and unsaturated sand flows at the stoss slope of the dunes resulted the erosion at the toe of the dune. Under the medium and low drifting-sand winds the sands being transported have divergence with that on the surface, the mean grain size of transported sands is lower than that on the surface and the sand transporting is a stochastic process.

起动剪切速度减小与不饱和风沙流是沙物质在横向沙丘迎风坡坡脚不能产生沉积的主要原因；再者，平均风速并不能完全反映野外实际状态下气流的性质，在低－中强度的风沙活动过程中，被输送的沙物质的粒度组成与下垫面物质有明显的差异。

But there are exceptions, including in the desert sand dunes in the form of sedimentary sandstone Fassino of the cocoa, as well as some parts of the Supai rock.

但也有例外，其中包括在沙漠中以沙丘形式沉积的可可西诺砂岩，以及 Supai 岩层的某些部分。

There are exceptions, including in the desert sand dunes in the form of sedimentary sandstone Fassino cocoa, as well as some parts of the Supai formation.

但也有例外，其中包括在沙漠中以沙丘形式沉积的可可西诺砂岩，以及 Supai 岩层的某些部分。

According the difference of plant community in Daqinggou Nature Reserve, the environment was divided into 7 kinds of habitats, they are Fraxinus mandshurica plant community, Quercus mongolicus plant community, Ulmus macrocarpa plant community, conifer community, lakefront plant community, paddy field plant community and grassplot plant community in sandlot.

按照植物群落的不同将保护区内的环境划分为7种生境，分别为水曲柳植物群落、蒙古栎植物群落、大果榆植物群落、针叶林植物群落、湖边湿地植物群落、稻田植物群落和沙丘草地植物群落。

Hike to the island-s deepest lake, Lake Wabby, surrounded by a massive sand-blow and small, scenic Lake Allom where fresh-water turtles lie on the forest-fringed shore.

远足前往岛上最深的湖瓦比湖和小巧秀丽的艾勒姆湖。瓦比湖由巨大的滚动沙丘所包围，而在艾勒姆湖则可以在毗邻森林的岸上看见淡水龟。

Now, as chairman of the Nanshan Ski Village, in the desert hills near Beijing, he presides over the capital's main winter-sports recreation ground.

现在，身为京郊沙丘中的南山滑雪度假村董事长，他掌管着首都最重要的冬季运动游乐场。

Rocky mesas, canyons and arroyos break up the monotony of kilometers of shifting dunes. The days are hot and the nights are frigid.

岩石台地、山谷和旱谷将单调的起伏沙丘分离出来，昼夜的温差极大，空气乾燥且土壤乾裂。

A state park and a 668-hectare-wilderness area occupy the reclusive far end of the cape, with camping and beaching among the towering dunes as well as fishing and wildlife spotting as favourite pastimes.

一座州立公园和占地668公顷的野生群落占据着海角幽远的尽头。在那里您可以在高耸的沙丘中感受露营和晒日光浴的乐趣，捕鱼和野生生物探索也将成为一大乐趣。

The gentle sweep of the dune bisects the frame and the energy of the plant is reinforced by its stalks thrusting skyward.

这柔和的沙丘平分图像和能量的植物是加强由它的茎秆加强推向天空。

The gentle sweep of the dune bisects the frame and the energy of the plant is reinforced by its stalks thrusting skyward.

温和的横扫沙丘平分画面和植物的活力是其加强了它的茎干指向天空。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。