您要查找的是不是：
- The fragile land quickly lost its topsoil and became nothing but sand and dust. 那单薄的土地很快就失去了表土，成为沙粒和尘埃。
- A dry wind called the Harmattan, which blows from the Sahara desert over Ghana and Nigeria, carries much sand and dust. 一种叫“哈马顿”的干燥的风自撒哈拉大沙漠夹带着大量的沙粒和尘埃，越过加纳和尼日利亚。
- The wind causes much wearing of rocks,particularly if sand and dust are blown along by it. 风引起岩石磨耗，尤其是当风沙很大时。
- A whirlwind is small in size and may suck up sand and dust as it moves over the surface of the Earth. 旋风的范围小，当它在地球表面移过时，可以吸进沙和灰尘。
- The resource of sand and dust particles has little influence on the CCN concentrations. 层状云中 CCN浓度随高度变化不大
- The wind causes much wearing of rocks, particularly if sand and dust are blown along by it. 风引起岩石磨耗，尤其是当风沙很大时。
- Desert (2nd volume): remote and vast melody describing sand and dust floated by a stiff wind implying the sense of loneliness and immenseness. 沙漠(第二段)：悠远壮阔的曲风,描述著沙漠中,一阵狂风吹起了黄沙纷飞，增添寂寥与壮阔的感觉。
- Abstract: Sand and dust are both products of physical weathering.However,their behaviors are entirely different in the eolian transport process. 摘 要： 沙与尘虽然都是岩石物理风化的产物，但在风力作用下，习性截然不同。
- Sand and dust are both products of physical weathering.However, their behaviors are entirely different in the eolian transport process. 摘要沙与尘虽然都是岩石物理风化的产物，但在风力作用下，习性截然不同。
- For example, it says climate change and land use are expected to increase desertification worldwide, increasing the risk of sand and dust storms. 例如，气候变化和土地的开发使用预计将加剧世界范围的沙漠化，增加沙尘暴的风险。
- Moreover, with the fast improvement of citified level and fast development of traffic and civil aviation, the loss made by the same sand and dust weather largely increased. 而沙尘暴监测与预警技术的研究在防灾和减灾中就显得尤为紧迫和重要。
- During the region's summer months, sand and dust storms are regularly spurred by the shamal, a northwesterly wind that whips the region as air migrates toward a low-pressure center over Pakistan. 大气层夏季的时候，夏马风（中亚及波斯湾一带的一种寒冷的西北风）有规律地扬起沙尘暴，当气流移向低压中心，穿越过巴基斯坦时，一股西北风鞭笞着大气层。
- Sand and leaves trapped the water in the stream. 沙子和树叶堵住了小河的水流。
- Based on the data of Lanzhou meteorological observation from 1971 to 2000 and the data from 2001 to 2004,the temporal characteristics and the cause of sand and dust weather in Lanzhou city are analyzed. 利用1971~2000年和2001~2004年兰州市观测站资料,分析了兰州市沙尘天气的气候特征和2001~2004年沙尘天气特点及产生原因。
- The bottom layer is a mixture of sand and clay. 最下面的一层是沙和泥的混合物。
- Besides, eyelash is the protective screen of the eye, have protective eye to avoid the function that gets the stimulation such as sunshine, sand and dust, fribble of avoid by all means. 再说，睫毛是眼睛的屏障，具有保护眼睛免受阳光、沙尘等刺激的功能，切忌轻举妄动。
- These sand and dust are not Beijing " produce formerly " , its " birthplace " it is Lin Cao the northwest that rate of establish coverture top is not worth 5 % saves the desert with area barren bleak. 这些沙尘并非北京“原产”,它的“故乡”是林草植被覆盖率不足5%25的西北省区苍凉贫瘠的荒漠。
- The northern ecotone is one of the ecological fragile and poor regions in China.It becomes the main source of sand and dust storm which deteriorates the environment of Chinese inland. 摘要北方农牧交错带是我国生态脆弱与贫困主要地区之一，也是影响内地大气环境的主要沙尘源地。
- Dirt and dust are drawn into a vacuum cleaner by suction. 污物和灰尘被吸入吸尘器。
- The workers mixed the asphalt with sand and gravel together. 工人们把沥青和沙子、石块混合在一起。
