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- CARBONATE CONTENT AND CARBON AND OXYGEN ISOTOPIC COMPOSITION OF SURFACE SOIL IN THE DUST SOURCE REGIONS OF CHINA 中国粉尘源区表土碳酸盐含量与碳氧同位素组成
- Characterization of airborne carbonate over a site near Asian dust source regions during spring 2002 and its climatic and environmental significance 2002年春季期间一个接近亚洲尘源区地方上空的碳酸盐特征和它的气候及环境重要性
- THE LATE CENOZOIC EOLIAN DEPOSITS IN THE LOESS PLATEAU AND THE ARIDITY OF EOLIAN DUST SOURCE REGION 晚新生代黄土高原风尘堆积与粉尘源区干旱化问题
- dust source regions 沙尘源区
- The arid and/or semiarid region in the middle and west parts of the Tibetan Plateau may be a potential dust source for the aeolian deposit of the northeastern Tibetan Plateau. 位于高原季风与东亚季风交汇区的湟水流域风尘堆积物可能有一部分来源于青藏高原中-西部干旱地区的风化细粒物质。
- The output region must not overlap with the source region. 输出区域和源区域必须没有任何重叠。
- The paper analyzes dust source and pollution actuality and brings forward prevention and cure countermeasure to different dust source. 分析了乌鲁木齐市扬尘的来源及污染现状,并针对不同扬尘源提出污染防治对策建议。
- The cement mill main dust source;s dust-concentration and net filtering wind velocity of the pulse spay-blow bag dust-precipitator suggestiong value. 水泥厂主要尘源点的含尘浓度和脉冲喷吹袋式除尘器的净过滤风速建议值。
- Moreover, the Angstrom exponent tends to be lower, indicating that the ratio of larger particles increased. So it is necessary to enhance the dust source harnessing. 而春季气溶胶光学厚度则在近2年有明显增加;源自沙尘天气;且Angstrom指数亦变小;表明大粒子比例增加;因此需要加强对沙尘源的治理.
- Ecological Destruction in the Source Region of the Huanghe River and Countermeasures. 黄河源区生态破坏现状及保护对策。
- In the third part, the concrete problems about ecological environment in the source region of the two rivers in Altai Mountain are pointed out. 第三部分具体指出了阿尔泰山两河源区现存的各种生态环境问题。
- Desertification of various degrees have been happening in the source region of Yangtze River. 长江源区存在不同程度的沙化现象,沙地种类多样,分布广泛。
- In geotectonics and metallogeny, a preliminary study was performed on the type of source region for. 以湖南及邻区为例,对黄金成矿学及成矿区域预测进行初步分析。
- The source regions of the Yellow River are crucial water resources in China and the important part of China's Watertower. 摘要黄河源头区是我国重要的水源涵养地区,是“中华水塔”的重要组成部分。
- In addition, the paper submits the suitable forum that exploring ground water at urban focus source region at supply. 指出了城镇集中供水水源地地下水开采的主要适用形式。
- Sublevel Mechanized caving method shows the characteristics of high out-put,more dust sources,high dust concentration and difficult to control. 煤矿综采放顶煤工作面开采强度大、产尘尘源多、粉尘浓度高,因而对尘毒的治理难度大。
- However, 70 X 104 km2 of grassland became sources of sand dust because of soil wind erosion, which account for 30.4% of all sand dust sources, and 38% of all grassland in China. 但有近75万km~2的草地发生风力侵蚀并为沙尘暴提供物质来源,占总物质来源地的30.;4%25,占全国草地面积的38%25。
- In the second part, the author describes the natural environment and economic conditions of source region of the two rivers in Altai Mountain. 第二部分具体阐述了阿尔泰山两河源区的自然生态环境、社会经济状况。
- The motor car disappeared in eddy of dust. 汽车在一片扬尘的涡流中不见了。
- Which of the following are likely hazards brought to Changjiang due to melting of glaciers and permafrost in the source region (Qinxang Gaoyuan)? 下列哪几项是长江源头区(青藏高原)因冰川、冻土融化而可能给长江带来的祸害?