dune sand
英 [djuːn sænd]
美 [duːn sænd]
网络 沙丘砂; 丘砂
双语例句
- A dune grass of the Pacific seacoast used as a sand binder. Planting trees and grass can not only resist but also fix sand.
用作固沙植物的太平洋海岸的沙丘草。植树种草既能阻沙，又能固沙。 - A dune buggy is a recreational vehicle with large wheels, and wide tires, designed for use on sand dunes or beaches.
沙地车是一种配有大轮子款轮胎的休闲车辆，主要适合在沙丘地带或者沙滩行驶。 - Everyone knew that the dune threshers attacked from under the sand, and that we were safe upon the rocks!
人人都知道沙丘长尾鲛会从沙地下发起攻击，我们在岩石上很安全！ - The evaporating capacity of surface soil in mobile dune is mostly rest with thickness of dry sand bed, with the increasing of dry sand bed thickness, the evaporating capacity reduce gradually.
流动沙丘土壤表层蒸发量主要取决于干沙层的厚度，表现为随着干沙层厚度的增加，沙丘表层的蒸发量逐渐降低。 - The little dune is formed with loose dry sand by wind.
这个小沙丘是由风吹来的干沙子形成的。 - When the matrix potential varies from-1 to-3? 000? cm, the unsaturated soil hydraulic conductivity of BSC is about 12% lower than that of the dune sand, while the matrix potential varies within-3?
当土壤基质势在-1~-3000cm的较高范围变化时，生物土壤结皮平均非饱和水力传导度低于沙丘沙（约为12%）； - Dune is a typical kind of fractal geometrical entity and there are self-similar characters between the distributions of dune whose fractal dimension is about 1/ 2 as much as that of the distributions of sand diameter.
风沙地貌是一种典型的分形几何实体，沙丘分布具有分形特征，其分维值体现了风沙地貌的自相似性规律。 - This study provided the analysis of changes of species diversity and productivity in relation to soil properties in six typical habitats ( wet meadow, dry grassland, fixed dune, semi-fixed dune, semi-shifted dune, and shifted dune) in Horqin Sand Land.
研究了科尔沁沙地6个典型生境类型的沙质草地群落物种多样性与生产力的变化，分析了植物群落格局、物种多样性、生产力与土壤特性的关系。 - According to the moving regular pattern of sandy dune, control of wind erosion of moving dune is key to increase sand fixation forest of Salix psammophila C.
根据沙丘风沙流运移规律，控制流动沙丘的风蚀、促进沙埋是提高流动沙地沙柳固沙林的关键。 - Features of quartz grain surface texture of coastal dune sand along Guangdong and Hainan Provinces
粤琼海岸沙丘砂石英颗粒的表面结构特征 - Using the statistical relationships among bank-full current depth, average sand dune height, average thickness of sand cross-stratum sets and width of braided channel belts may predict the width of the channel belts based on sand cross-stratum set thickness measurements of cores or outcrops.
根据岩心或露头上砂岩交错层层组的厚度，利用辫状河河流的满岸水流深度、平均沙丘高度、平均砂岩交错层层组厚度和河道带宽度之间的统计关系来预测河道带宽度。 - Dune surface wind velocity distribution differences can lead to wind erosion and aeolian sand in different part of the dune.
沙丘表面风速分布的差异性是导致沙丘不同部位发生风蚀与风积的主要原因。 - In light of the difference of gradient and height of sandy dune, forestation mode in dividing districts is adopted to restore sand vegetation at moderate degree.
为此，按照沙丘高度和坡度的差异，并采取分区造林模式，适度恢复沙地植被。 - The contents of RNA and DNA in the other three ecotype reeds were highest in May. Content of RNA in salt meadow and dune transitional reeds rose a little in September, so did of swamp reeds and sand dune reeds.
过渡带芦苇的RNA含量、沼泽芦苇及沙丘芦苇的DNA含量9月份略有增高。 - Research of several problems on movement characteristics of coastal dune sand& an example from the south coast of Minjiang Estuary
海岸沙丘沙运动特征若干问题的研究&以闽江口南岸为例 - The analysis to sandy desertification land types shows that the moving sand dune decreases, semi-fixed sand dune and fixed sand dune increase.
从沙化土地类型上分析，流动沙地面积减少，半固定、固定沙地面积增加。 - Contents of Crude protein from high to low was Salt meadow reed, Sand dune reed, Swamp reed, and Salt0meadow a nd sand dune transitional zone reed.
粗蛋白含量由高到低顺序为：盐化草甸芦苇、沙丘芦苇、沼泽芦苇、过渡带芦苇。 - In wind tunnel, the formation of crescent dune form ( its size is bigger one order of magnitudes than the ripples on the sand bed) will be helpful to understand the formation mechanism of the barchan dunes.
风洞实验条件下形成的新月形沙丘形态（其尺度比床面沙纹大一个数量级），有助于新月形沙丘形成机制的了解。 - Composition of partical fraction of tall sand dune is mainly affected by nearby sand source.
高大沙丘粒级组合主要受就近沙源影响。 - Influence of Low Grade Dune Sand on the Moulding Sand Properties and Quality Of the Iron Castings
低品位原砂对型砂性能和铸件质量的影响 - The soil pH did not exhibit significant autocorrelation in the semi-fixed sand dune but it did significant autocorrelation in the meadow and the fixed sand dune, both fitting the spherical model.
土壤pH值在滩地和固定沙丘的空间分布符合球状模型且空间自相关显著，但在半固定沙丘空间自相关不显著； - Achievements in this stage is summarized: a preliminary insight of blown sand movement, dune advancement, the activities of the dune fields in the north of China, design principles of blown sand control and a few theoretical attempts in blown sand and dune movement.
研究成果体现在风沙移动规律的初步认识、沙丘移动规律、中国沙丘活动的总体规律、防沙措施的布设原则和风沙运动理论的初步探讨等几个方面。 - The results indicate that the water holding capacity of BSC is 3 to 9 times magnitude than that of shifting dune sand;
结果表明，生物土壤结皮的持水能力是沙丘沙的3~9倍。 - The results suggested that among 4 reed we use Sand dune reed first, then Swamp reed, and then Salt meadow and sand dune transitional zone reed, Salt meadow reed.
由此得出，4种生境芦苇利用价值由高到低的顺序依次为：沙丘芦苇、沼泽芦苇、过渡带芦苇、盐化草甸芦苇。 - The modern desertification process consists of farmland wind erosion process, grasslands degradation process, fixed dune activation and drifting sand moving process.
现代荒漠化过程表征的主体为农田风蚀沙化过程、草场退化过程、固定沙丘活化与流动沙丘移动过程。