它们依靠地下水源和土壤层生存。
They rely on groundwater sources and the soil layer to survive.
滥伐森林导致每年整个土壤层都流失到海里去了。
Deforestation erodes whole layers of soil into the ocean every year.
磨碎后铺在地表，形成新的土壤层和步道表层。
Stones were ground down to become new soil and walking surfaces.
采用模型实验方法，模拟垃圾填埋场土壤层进行研究。
The modeling method was applied to simulate landfill soil layer.
各灌木林地不同土壤层内根系的生物量也存在一定的差异。
The root biomass in different soil layers also had certain discrepancy even in each bush forestland.
—通过化石周围的火山土壤层测定它的年份是440万年前。
Volcanic layers around the fossil were used to date it from 4.4million years ago.
漫游者发现了分歧组成的分层的土壤层，具有地表下的水的迹象。
The rover found stratified soil layers of different compositions, with evidence of water below the surface.
在试验中一天两次对0—80cm土壤层每20 cm处进行湿度测定。
During the experiment, moisture was measured twice a day at 20-cm intervals between 0 and 80 cm of the soil.
渗滤液循环是利用填埋场的上覆土壤层及垃圾填埋层的净化作用来处理垃圾渗滤液。
The leachate circulation is a method to treat the garbage leachate, using the purification action of the superimposed soil layer and the garbage dump layer of the filling ground.
污水土壤处理试验，主要是利用透水性较强的土壤层的生物化学作用，其次是淋滤吸附。
The sewage soil disposal experiment is made mainly by using biochemical process of looser permeable soil horizon, and secondly by leaching and adsorption.
本文利用等温吸附的线性关系，对苯酚在土壤层中的吸附动力学过程进行数学模拟研究。
A mathematical model of adsorption of phenol in soil has been studied using linear function of adsorption isotherm.
森林植被通过林冠层、枯落物层和根系土壤层的分层拦截吸收，起到突出的减洪减沙作用。
Through the roles of interception and absorption of the canopy layer, litter layer, and root and soil layer, the benefits of flood and sediment reduction of forest vegetation are prominent.
建立了一个包括土壤层、塑膜覆盖物、植物冠层和大气边界层的系统，系统中的各层进行了能量平衡计算。
A system consisting of soil layer, mulch layer and atmospheric boundary layer is developed and energy balance equation for each layer is derived.
研究者们拼凑了包括头骨，手掌，脚掌，上臂，腿和骨盆在内的125块骨骼碎片，并采集挖掘处上层和下层的火山土壤层测定年代。
Researchers have pieced together 125 fragments of bone - including much of her skull, hands, feet, arms, legs and pelvis - which were dated using the volcanic layers of soil above and below the find.
—洛斯阿拉莫斯国家实验室的地质学者沃德·盖布·瑞尔采集化石挖掘地点上层和下层的火山土壤层分析测定其年代在440万年前。
Geologist Giday WoldeGabriel of Los Alamos National Laboratory was able to use volcanic layers above and below the fossil to date it to 4.4 million years ago.
沿岸土壤层中砂层为受污染的河水对浅层地下水的补给提供了条件，造成浅层地下水污染，对当地生态系统和人类健康构成潜在的威胁。
The sand layer in the soils could provide transportation of pollutants from the polluted rivers, which could be potential threat to ecosystem and local population.
挖掘到的土壤层将用一个化学装置来进行检测，装置中带有显微镜，电化学和传导性的检测器，其中带有大量的水，因此其将不能检测样品中是否含有水。
The regolith was analysed by a chemistry set known as the Microscopy, Electrochemistry and Conductivity Analyser, which contains so much water itself that it cannot detect the stuff in samples.
SFCW由于使所有水流不断与土壤层、砾石层和豆石层反复接触，生成难溶性磷酸盐的几率大大高于SFCW，能够比SFCW更加显著地促进磷沉积。
W-SFCW system, which provides more interaction surfaces for wastewater to react with soil, oval stone and small-sized stone layers, showed higher chances to form insoluble phosphate than SFCW.
SFCW由于使所有水流不断与土壤层、砾石层和豆石层反复接触，生成难溶性磷酸盐的几率大大高于SFCW，能够比SFCW更加显著地促进磷沉积。
W-SFCW system, which provides more interaction surfaces for wastewater to react with soil, oval stone and small-sized stone layers, showed higher chances to form insoluble phosphate than SFCW.
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