查询词典 barchan

Strange creatures slithering up from the Empty Quarter desert floor in the Arabian Peninsula are really a network of barchan dunes—sculpted by winds that over time strike the sand from a consistent direction.

在阿拉伯半岛的空域沙漠上，新月形的沙丘蜿蜒而行，如同一种奇特的生物。它们是由风长期从同一个方向侵蚀而成。

Patterns in Nature: Sand Strange creatures slithering up from the Empty Quarter desert floor in the Arabian Peninsula are really a network of barchan dunes—sculpted by winds that over time strike the sand from a consistent direction.

沙在自然界的模式。奇怪的创造物不稳定的滑动从空的沙漠地面在阿拉伯半岛真的是一个网状物的新月形沙丘――被风雕塑随着时间的推移侵袭的沙子从一个恒定不变的方向。

Strange creatures slithering up from the Empty Quarter desert floor in the Arabian Peninsula are really a network of barchan dunes—sculpted by winds that over time strike the sand from a consistent direction.

奇怪的动物不稳定的滑动从空季度沙漠基底在阿拉伯半岛真的是一个网络新月形沙丘――雕塑被风，随着时间的推移冲击沙子从一个恒定不变的方向。

The Martian North Pole is ringed by many similar fields of barchan sand dunes, whose strange, smooth arcs are shaped by persistent Martian winds.

火星北极被许多类似的弧形沙丘包围着，由于一直不断吹着的火星风侵蚀出了这样奇怪而又平滑的形状。

Barchan ; windward flank ; wind speed\|up simulation ; dune shape

新月形沙丘；迎风坡；加速模拟；沙丘形态

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。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。