Groundwater commonly collects in stream drainages but may remain entirely beneath the surface of dry stream-beds in arid regions.
地下水通常聚集在河流流域，但在干旱地区，地下水也可能完全保留在干涸河床的表面之下。
Following the Mama Bongisa advice, they mounded the earth to get as much surface area as possible and to prevent Kinshasa's harsh rains from flooding the beds.
按妈妈促进会的建议，他们堆起土，尽可能地扩大面积并防止金沙萨的暴雨冲垮菜地。
A major advantage of fluidised beds is that they provide a well mixed, high surface area, fluid-solid system which is useful for efficient reactions and heat transfer.
流化床的一大优点在于能产生一个充分混合的具有很大表面积的流体与固体的接触系统，这对高效反应和传热都很有用。
The slatted surface extends around an outdoor lobby area, where a walkway formed of large slabs crosses a reflecting pool incorporating planted beds.
板条表面向周围的户外休闲区延伸，大块的石板步道穿过一片结合种植区的泳池。
The effects of liquid and gas velocity, liquid viscosity and surface tension on average pressure drop in three phase Fluidized beds were determined.
研究了气速、液速、液相粘度和表面张力对三相流化床平均压降的影响。
The groundwater allocation in red beds is controlled by environment factors such as climate, geomorphology, surface water system, lithology and tectonics.
红层地下水水量受控于气候、地形地貌、地表水文网、岩性、构造运动等环境因素。
A practical and effective calculation method of water surface line and bed pressure on curved beds of channels is presented in this paper.
给出了一个实用、有效的曲面急变流水面线及床面压力的计算方法。
A practical and effective calculation method of water surface line and bed pressure on curved beds of channels is presented in this paper.
给出了一个实用、有效的曲面急变流水面线及床面压力的计算方法。
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