查询词典 dune sand

The Changyeh forest park is situated at middle the Gansu Corridor oasis plain, is in the unique environment, northern side has prospect Long Shoushan to work as the household, encircles in the northern countryside rural cottage link, south side prospect Qilian is boundless, the scenery sand dune is continuous, but south side the Jiulong Jiang narrow-leaved oleaster forest is green and luxuriant, in the garden the sand beach, the sunlight, the forest, the lake water and so on abut the urban district, from, the environment is graceful all day long, the ideal condition profound, is the ideal botanical garden good.

张掖森林公园地处河西走廊绿洲平原中部，处于独特的自然地理环境，北面有远景龙首山当户，在北部田园村舍环围，南面远景祁连茫茫，中景沙丘连绵，而南面九龙江沙枣林郁郁葱葱，园内沙滩、阳光、森林、湖水等紧靠市区，自成天地、环境优雅、意境深邃、是理想的园林佳地。

The total microbial numbers in fixed sand were 2.8 and 12.5 times as many as those in semi-fixed sand and in sand-flowing dune,respectively.

土壤微生物，在风沙土的发生、土壤肥力的形成和发展、营养元素的转化中起着不可替代的作用[1]。

Sedimentary facies model for mixed sediments of recent reefoid carbonates and siliciclastics is developed from the facies model of fringing and barrier reefs. Based on the sedimentary facies and textures, mixed sediments may be subdivided into 5 types as follows: 1 reef base mixed sedimentary rocks and reef framework mixed sedimentary rocks; 2 reef flat sand-gravel mixed sedimentary rocks; 3 backreef beach-dune gravel-sand mixed sediments; 4 backreef lagoonal sand mixed sediments ; and 5 reef front littoral sand mixed sediments.

礁源与陆源混合沉积相模式是从岸礁一堡礁相模式基础上发展而来，根据其沉积相和沉积结构特徵可以分为5种混合沉积：①礁基混积岩和礁格架混积岩；②礁坪砂砾屑混积岩；③礁后海滩－沙提砾砂屑混合沉积；④礁后泻湖砂屑混合沉积；⑤礁前浅海砂屑混合沉积。

The sand dune landscape was not caused by tectonic movement,but by wind and different erosion,and the peat layers were formed in limnological environment in the wind-accumulating dune area.

该区沙山地貌并非新构造运动所致，属差异侵蚀作用的结果，泥炭层由风积地区沙丘间湖沼沉积形成。

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。

The field experiments on the secondary flow developed on the lee side show that there are strong sand transport potential at the lee side of the dunes near the surface because of the decreasing of the sand grain size and the other factors. The transport directions are nearly vertical to the dune trends. Those factors and the sand slumping on slip face, and the sand transport processes on the stoss slope make the transverse dunes maintaining their morphology under the advance processes.

对沙丘背风坡发育的二次流的野外观测表明，近地面一定高度内沙丘背风坡气流仍有一定的强度，由于背风坡的沙丘沙粒径较小等因素，背风坡气流仍保持一定强度的输沙率，输沙方向与沙丘走向基本上垂直，这种作用与沙物质向背风坡崩落、迎风坡的输沙过程等共同作用，因而使横向沙丘在运动中保持其形态。

Blond children scoot around on bicycles, elderly German couples take their evening constitutionals along the waterfront and teenagers who look surprisingly like California surfer dudes guide tourists through an utterly un-African extreme sports scene: sand boarding, sand sledding, sand skiing and sand sailing — none of which includes a dune lift, so all of which demand repeated uphill slogs through the sand and the inhalation of lungfuls of Namibian dust.

白肤金发的儿童在自行车兜圈，年长的德国夫妇沿着江边消磨自己晚上的时光，看起来像加利福尼亚的花花公子的青少年们在引导游人体验这种绝对的并非－非洲人的极限运动场景：沙滩木板、沙滩雪橇、沙滩滑雪术和沙滩航行术。所有的运动无不被沙丘弹到空中，所以所有的运动要求穿过沙土艰难的向上行进，两肺都将吸入大量的纳米比亚的尘土。

Blond children scoot around on bicycles, elderly German couples take their evening constitutionals along the waterfront and teenagers who look surprisingly like Californiasurfer dudes guide tourists through an utterly un-African extreme sports scene: sand boarding, sand sledding, sand skiing and sand sailing - none of which includes a dune lift, so all of which demand repeated uphill slogs through the sand and the inhalation of lungfuls of Namibian dust.

金发的孩子们骑着自行车飞驰而过、中年的德国夫妇沿着码头散步，像极了打扮的很花哨的加州冲浪运动员的青年们引领着游客们穿过完全没有一点非洲风格的极限运动场：沙滩冲浪，沙滩雪橇，沙滩滑雪和沙滩航行---每一个项目都离不开沙丘，而且所有的项目都会让你一次又一次地吸入纳米比亚的沙尘。

Blond children scoot around on bicycles, elderly German couples take their evening constitutionals along the waterfront and teenagers who look surprisingly like Californiasurfer dudes guide tourists through an utterly un-African extreme sports scene: sand boarding, sand sledding, sand skiing and sand sailing - none of which includes a dune lift, so all of which demand repeated uphill slogs through the sand and the inhalation of lungfuls of Namibian dust.

白肤金发的孩子们疾速地骑着自行车到处跑，年龄大一点的德国情侣们在河边度过一个又一个花前月下，那些十几岁的年轻人，看起来不可思议地像极了加利福尼亚人，他们则承担起东部旅行者们的导游，带领他们参看那些完全脱离了非洲格调的极限运动：滑沙板、滑沙橇、沙地滑雪、沙飘—这些运动中没有任何一个使用沙丘攀登设备，因而它们所要求的是在沙地上的反复攀爬跋涉并吸入满肺的纳米比亚尘土。

In the fixed sand dune and half fixed sand dune in shallow groundwater, there are four districts among the soil from the underground watertable to the soil surface.

地下水埋深较大的固定半固定沙丘土壤含水量的总体变化趋势是由上到下逐渐增大。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。