查询词典 dunes

But beach berm and aeolian dunes are poorly developed.

但滩肩和海岸沙丘发育均不明显。

Patterns in Nature: Sand Wind polishes Egypt's Western Desert sand dunes to fine alabaster.

沙在自然界的模式。风打磨埃及西部沙漠的沙丘，以优良雪花石膏。

It is known for its dramatic dunes, including the crescent-shaped barchan dunes shown here, some of which can reach 100 feet (30 meters) high and 1,200 feet (370 meters) wide.

其实这是著名的戏剧性的沙漠，它包括新月形的沙丘显示在这里，其中几个可能达到30米高和370米宽。

It is known for its dramatic dunes, including the crescent-shaped barchan dunes shown here, some of which can reach 100 feet (30 meters) high and 1,200 feet (370 meters) wide.

这里因有着壮观的沙丘而知名，比如图中的这些半月状的弧形沙丘，有些沙丘甚至可高达100英尺(30米)，宽达1，200英尺(370米)。

It is known for its dramatic dunes, including the crescent-shaped barchan dunes shown here, some of which can reach 100 feet (30 meters) high and 1,200 feet (370 meters) wide.

纳米布沙漠因它壮丽的沙丘闻名于世，包括像照片显示的这种新月形的沙丘，其中一些沙丘可以达到100英尺（30米）高和1200英尺（370米）宽。

Another kind of dunes are barchan dunes.

另一种是新月形沙丘类型沙丘。

Parabolic dunes are the opposite of barchan dunes.

抛物型沙丘是新月形沙丘相反。

Field measurement of surface wind velocity and sediment transport rates was made on barchan dune in Wulanbuhe desert to understand. The results show that the wind velocities increasing upon windward slopes of the dunes vary with both slope morphology and wind velocity at the foot of the dunes.

对乌兰布和沙漠新月形沙丘表面风速的野外观测结果表明，沙丘迎风坡气流加速量主要和沙丘坡面形态、迎风坡前来流风速有关，迎风坡风速放大率介于1.02~1.59之间。

After the dunes, such as tree cover, Kou looming, like the clouds as stunning; psammophila, Mao Liu dotted on the sand dunes, like the reed in Lake Naivasha, a clusters of, clumps, clusters of color is different clumps posture dissimilar; breeze light Buddha, Ying Chi's green like a lake-like rippling blue waves.

沙丘后如盖的树寇若隐若现，像云朵般美伦美奂；沙柳、毛柳点缀在沙丘上，恰似沙湖中的芦苇丛，一簇簇，一丛丛，簇簇色不同，丛丛姿相异；微风轻佛，盈尺的绿草犹如湖水般碧波荡漾。

The study area in the semi-arid environment where the wind energy is medium and wind blows from single direction; the value of sand dune mobility is small. In the study areas blowouts develop on thick sandy alluvial deposits and undulated vegetated sand dunes. Its intensively locates in the upper windward side of dunes or other inclined terrain.

研究区风蚀坑处在中风能单向风况和沙丘活动性指数较低的半干旱草原环境，主要分布于沙源丰富的河湖相沙质沉积物和缓起伏固定沙丘地，集中出现在梁岗丘陵和固定沙丘等斜坡地形迎风面上部。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐