At present the study of the movement of sands mainly focuses on theoretical analysis of and numerical simulations of blown sand on the flat bed of sand.
目前对风沙运动的研究主要集中在对平坦沙床上的风沙流进行理论与数值模拟，而对复杂地形和沙丘上的风沙运动的理论与数值模拟则相对很少。
Your legacy shall drift away; blown into eternity, like the sands of the desert.
你的遗产将渐行渐远，融入永恒，如同沙漠中的黄沙一般。
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