单词:arid soil
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By Gary Garriott Broadcast: July 29, 2003 This is Bill White with the VOA Special English Agriculture Report. Soil conservation efforts protect soil from wind and water that can blow or wash it away.
I took this picture in the Tihamah Desert while 25 millimeters -- that's an inch of rain -- was falling. 这张照片是我在提哈迈沙漠拍的下着25毫米(一英寸)的雨。 Think of it in terms of drums of water, each containing 200 lite
Mars Rover to Begin Taking Soil Samples This Week Jessica Berman NASA engineers say the Mars rover will begin taking its first soil samples as soon as it departs the landing platform . Engineers say t
By Phuong Tran Dakar 27 December 2006 Only days away from the end of the United Nations' Year of Deserts and Desertification, four experts discuss the challenges of translating a decade's worth of research about the degradation of land in arid areas
岩石圈LITHOSPHERE 固态地球SolidEarth 洞穴Caves 地震活动Seismicactivity 地震监测Seismicmonitoring 火山Volcanoes 风蚀Winderosion 陆地生态系统TERRESTRIALECOSYSTEMS 土壤Soils 农
time will not stand still today is the day, the day of salvation living for more than just synthetic force fed existence this is my disposition I will strive for the truth time will not stand still today is the day, the day of salvation living for mo