他们也发现北极地区的阵风有足够力量移动沙丘的证据。
They also found evidence that wind gusts in the northern polar region are strong enough to move grains of sand.
纳米布沙漠是世界最大的移动沙丘所在地，高近千英尺。
The Namib Desert is home to the world's biggest migrating dunes, which reach heights of nearly a thousand feet.
沙尘暴能见度经常很低以至于看不见太阳，风有时得能移动沙丘。
They are so thick that you cannot see the sun, and the wind is sometimes strong enough to move sand dunes.
移动沙丘和半固定沙丘分选较好，表现出极强的正偏和较尖的峰值；
The particle-size classification of moving dune and semi-fixed dune was better, which showed a strong positive bias and a sharp peak.
沙尘常常很厚以至于你连太阳都看不见，风力有时强到可以移动沙丘。
They are often so thick that you cannot see the sun , and the wind is sometimes strong enough to move sand dunes.
波纹比沙丘移动的慢，因此经过一段时间，波纹会将沙丘掩盖，这也就解释了这里明亮的色调。
Because of this, over time, ripples get covered with dust, possibly explaining the bright tone visible here.
十几个沙丘的距离之外，飞速移动的白柱像喝多了酒的沙漠魔鬼一样，横冲直撞。
In the distance half a dozen sand-spouts, swiftly-moving white pillars, looking like desert genii with too much "tanglefoot" aboard, were careering about in every direction.
贾瓦人用这些古老的废料建造家园和工具，利用沙漠履带车和被外来采矿失败者丢弃的移动熔炉巡游沙丘。
The Jawas have built homes and tools from these ancient scraps, and travel the dunes in sandcrawlers, cast-off mobile smelters from failed outlander mining attempts.
整个沙丘波浪式地向前移动。
沙丘越高移动速度越缓慢。
有的时候它们也叫做沙海域因为沙丘看来举止像非常缓慢移动的海浪。
Sometimes they are also called sand seas because the dunes look and act like very slowly moving ocean waves.
研究结果表明，区域沙丘属于半固定沙丘，移动速度缓慢，全区的沙化地总体表现为负增长。
The result suggests that the sand dune is characterized by semi-active dune, the move speed is very slow, and all round the district desertification shows negative increase.
沙丘常往内陆移动。
沙丘常往内陆移动。
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