A simple prediction model for regional ground water and soll water concentration, in which the immobile water is taken into account, is proposed based on water movement and solute transport.
根据水均衡和盐分运动的基本原理，考虑到在实际情况下不动水体的存在，提出了一种简单的区域水盐动态预测预报模型。
Their natural beauty had been hijacked by an extraordinary concentration of ankle-deep plastic and paper garbage on the ground.
然而令人扫兴的是，大自然的鬼斧神工却在齐踝深的塑料垃圾和废纸中黯然失色。
Through continuous automatical adjustion of the paragraphs fluid volume, ground sand concentration, proppant type and size and so on, the software finally designs fracturing process.
通过不断自动调整各段防砂液体积、地面加砂浓度、支撑剂类型和粒径等，设计出压裂施工程序。
Thereafter, to use ULF geological remote sensing device on ground surface can block out gas concentration range and predict its extent.
据此，在地面使用超低频地质遥感探测仪，即可探测出地下瓦斯气的富集范围，预测其富集程度。
Thereafter, to use ULF geological remote sensing device on ground surface can block out gas concentration range and predict its extent.
据此，在地面使用超低频地质遥感探测仪，即可探测出地下瓦斯气的富集范围，预测其富集程度。
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