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- Phragmite australis is a kind of helophyte,the submergence and the ground water depth have effect on the growth. 芦苇是一种喜水性植物，地表淹水程度和地下水埋深对芦苇生长都有明显的影响。
- The classification of the community types mainly reflected the variations of soil salt content and ground water depth, which were decided by microtopography. 群落类型的划分主要反映了微地貌所决定的地下水埋深及土壤盐分含量的变化。
- Relationship between structural component biomass of reed population and ground water depth in desert oasis 荒漠绿洲区芦苇种群构件生物量与地下水埋深关系
- ground water depth 地下水深度
- The hydrologist figured the water depth along a wharf piling. 水文工作者在码头桩上用数字标明水深。
- A weight on the end of a line, used to determine water depth. 铅锤系在一条线末端的重物，用来测定水的深度
- Prepare spud plate and wire-line to check water depth. 准备测探板和钢丝绳测量水深。
- Seepage from land fills can pollute ground water or surface. 填土的渗漏可能污染地下水和地面水。
- Poisons used on farms and in homes can enter ground water. 在农场和家庭使用的毒物可以进入地下水。
- The quality of the ground water made some improvement. 地表水水质有所改善。
- This solution describes a spreading of a ground water mound. 这个解描述地下水丘的扩展。
- The optimum aperture of an aerator is smallest at the water depth of 4 m. 一般水深在4 m左右;曝气器的最优孔径最小.
- The optimum water depth increases as the aperture of the aerator increases. 水深较小时,宜选用孔径较小的曝气器;
- Ground water levels fall. Rivers get drier and drier. 地面水位下降。河流变得更干燥。
- Such as population de ity, street layouts, number of enterprises, water depth. 比如，人口密度，街道状况，企事业数量，水的深度。
- Such as population density,street layouts,number of enterprises, water depth. 比如，人口密度、街道状况、企业数目、水深。
- Ground water is also obtained for human use by sinking wells. 人们也通过挖井来获取地下水以供使用。
- Constant minimum water depth: 21feet at mean low tide at the face of all docks. 稳定的最小的水深：21英尺在最低潮可面对所有的码头。
- Ground water is usually removed by man through wells. 地上水一般是由人们从井里汲上来。
- The flow of ground water is toward streams, lakes, or oceans. 地下水经流的方向是朝向河流、湖泊或海洋的。
