由这些颗粒物质组成的地层很常见,通常位于土壤下方看不见的位置。
Beds of this material, out of sight beneath the soil, are common.
空气不能穿透土壤颗粒,这使得土壤中缺少氧气。
Air cannot penetrate between the soil particles, making the soil oxygen-poor.
降水往往会把细小的粘土颗粒转移到土壤的最微小的空隙中,使这些空隙变得封闭,从而形成了一种几乎不允许任何水分渗透下来的表层土壤。
The impact of raindrops on the loose soil tends to transfer fine clay particles into the tiniest soil spaces, sealing them and producing a surface that allows very little water penetration.
放射性颗粒随风飘散,在雨雪的作用下被土壤吸收。
Radioactive particles travel in the wind and get absorbed into soil with the help of rain and snow.
运动的土壤颗粒从一个地方到另一个地方利用风和水是一种自然现象。
Movement of soil particles from one place to another by wind and water is a natural phenomenon.
土壤中细颗粒的流失是土壤质量恶化的重要表现之一。
The fine particle loss in the soil is an important issue of soil quality degradation.
成功的应用实例包括少量喷撒、泡沫剂及农药颗粒剂的土壤施用。
Examples of successful application improvements are low volume sprays, foams, and granular soil applications.
放射性颗粒随风飘散,并随着雨雪被土壤吸收。
Radioactive particles travel in the wind and get absorbed into soil with the help of rain and snow.
这种气流会将土壤颗粒吹起到空中,然后被风刮走。
These motions cause the soil to lift up into the air where it will be blown away.
文摘:以土壤颗粒组成数据为基础,分析了我国土壤颗粒组成的分形维数。
Abstract: This paper analyzed the fractal features of particle size distribution (PSD) of soils in China.
这些纺织材料相当于一道屏障,它阻止了土壤颗粒的运动,但允许水的流动,以利于排水。
These textile materials act AS a barrier to the movement of soil particles but permit the flow of water necessary for adequate drainage.
吸附农药与溶解在土壤颗粒周围水膜中的农药平衡。
Adsorbed pesticide is in equilibrium with that dissolved in the water film around the soil particle.
当肥料颗粒接触潮湿土壤时,肥料便会吸收水蒸气,于是水溶养分开始透过包衣上的微孔缓慢而不断地扩散。
When the fertilizer particle contacts the moist soil, the fertilizer will absorb the vapor, and water dissolves nutrients begin to spread but constantly slow through the capillary on the capsule.
利用地统计学方法,在两个尺度下对蒙顶山茶园土壤颗粒组成的空间变异性进行了研究。
The geostatistics were used for analyzing the spatial variability of the soil particle composition in Mengding tea plantation with two sampling scales at Sichuan province.
在土壤颗粒之间就有着许多微小的空隙和洞隙。
用动态法研究了饱水细沙土柱中含酚废水在垂直流动情况下,土壤颗粒对苯酚的吸附传质过程。
In this study, adsorption mass transfer process of phenol by soil particles was investigated by means of dynamic method in a water-saturated fine and column under vertical flow of phenolic effluents.
但经过数周后,放射性颗粒可经动物消化后进入食物链,或经植物的根进入周围土壤。
But over a period of weeks, the radioactivity particles enter the food chain when they are ingested by animals or settle into dirt where they can be absorbed by the roots of growing plants.
研究结果表明红壤坡地固体径流中80%以上土壤颗粒为粉粒和粘粒。
The results show that 80% of the soil particles in the runoff solid is silt and clay in the sloping field of red soil.
颗粒物由若干部分组成,其中包括有机化学品、金属、土壤和灰尘。
Particulate matter is made up of a number of parts, including acids, organic chemicals, metals, and soil or dust.
土壤颗粒组成、容重、有机质、孔隙率影响土壤持水性能。
Then, the bulk density, porosity, the type of pore, particle constitute and organic carbon in the soil affected the soil moisture diffusivity.
在这五种参数模型中,MVG模型的误差最大,不能精确描述封丘地区壤土类土壤的颗粒大小分布。
The two-parameter MVG model yields the largest errors among the five models, and therefore is not suitable for describing soil particle-size distributions in Fengqiu area.
随着土壤流失程度的增大,流域不同土地利用状况下的A层土壤颗粒粒径分选系数降低。
With the increasing of soil loss, the sorting coefficient for soil particle diameter of a layer decrease in different types of land utilization.
一些土壤例如砂土具有松散的结构,因而有良好的排水性,而在粘土中,由于土壤颗粒小而互相粘合导致粘土结构紧密排水性较差。
Some soils, such as sandy soils, have a loose crumb structure with good drainage, whereas in clay soils the particles are small and stick together to give a dense crumb structure and poor drainage.
固化法是将污染土壤同凝固剂或者粘合剂混合,固化为颗粒或块状,对于重金属污染的土壤效果好。
The solidification method is to mix the polluted soil with coagulant or adhesive to solidify it into particles or pieces and therefore efficient for the soil polluted by heavy metals.
土壤是典型的松散介质,利用粘连的颗粒离散元模型模拟土壤聚团的行成及破裂一直是散体力学的热点之一。
Soil is a typical unconsolidated medium, and it is one of the most popular questions that the simulation for the generation and fracture of soil agglomerate with adhesive particle DEM.
土壤是典型的松散介质,利用粘连的颗粒离散元模型模拟土壤聚团的行成及破裂一直是散体力学的热点之一。
Soil is a typical unconsolidated medium, and it is one of the most popular questions that the simulation for the generation and fracture of soil agglomerate with adhesive particle DEM.
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