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- controlled water table 地下水调控深度
- Below the water table is the zone of saturation. 潜水面以下就是饱水带。
- The water table has been lowered by drought. 由于天旱,地下水位降低了。
- Just above the water table, the pores are practically saturated. 稍高出潜水面的孔隙实际上是饱和的。
- The saturated zone is bounded above by a water table. 饱和带的上界面为潜水面。
- The government has made great efforts to control water pollution. 政府作出很大努力来控制水污染。
- Water table is a surface on which the presure is atmospheric. 潜水面是一个其表面上压力等于大气压力的面。
- This lowers the water table and reduces soil alkalinization. 这能降低水位,减少土壤的碱份。
- Water table is a surface on which the pressure is atmospheric. 潜水面是一个其表面上压力等于大气压力的面。
- The water that fills the pores below the water table is not static. 充填在潜水面以下孔隙中的水不是静止的。
- Vadose zone is below weathering crust face and on water table. 潜流岩溶带的上限是枯水期的最低潜水面,该带地下水受压力梯度控制并沿水平方向流动,最明显的岩溶特征是出现大型的水平溶洞,地下暗河及其溶蚀孔、洞、缝发育段。
- Outcrop oil accumulation is a special accumulation which is located in the wing of an outcrop anticline or in a monocline in the edge of a basin and is controlled by water table. 露头油藏是一种形成于露头(削顶)背斜翼部或盆地边缘单斜上依靠潜水面控制的特殊油藏,是今后石油勘探的一个新领域。
- The level of the water table also fluctuates slightly with the season. 潜水面的高度也随着季节而稍有波动。
- Controlled water activity in food can prevent spoilage and maintain food quality. 通过控制水分活性能防止食品腐败和保证食品质量。
- To prevent and control water pollution,it is necessary to make unified plans on the basis of river basins or regions. 防治水污染应当按流域或者按区域进行统一规划。
- The distance of the water table below the soil surface must be adjusted. 必须调整土壤表面以下水位的距离。
- Advance ordering water amounts and charging automatically, control water usage by price lever. 预定水量、自动收费,用价格杠杆促进控制用水,真正实现节约用水;
- The water table of this land has nearly dried up, and needs treatment. 这块地的地下水层已经接近干枯,需要进行治理了。
- A strong,nonpersistent,yellow,crystalline herbicide,C12H12Br2N2,used to control water weeds. 杀草快一种强力非持久性、黄色、晶状除草剂C12H12Br2N2,用于控制水生杂草
- Overflow weir is used to control water hammer and prevent air entrainment in long supply pipelines. 在长距离输水管路出口设置溢流堰可以有效控制水击和防止管路脱空。