她目不转睛地注视着外面的黑夜，聆听着远处传来连续不断的重击声和下水管道的震颤声。
Staring out into darkness she listened to the succession of far-off bangs and shudders from the network of pipes.
而在河北省，约230万公顷的农业土地严重地受到了连续两亇季节干旱的影响，地下水位已经跌落了0.6米。
In Hebei Province, some 2.3 million hectares of agricultural land have been severely affected by two consecutive drought seasons, and the level of groundwater has fallen by 0.6 meters.
当前裂隙岩体地下水渗流数值模型主要有三种：等效连续介质模型、离散裂隙网络模型和裂隙-孔隙双重介质模型。
Mathematical models of seepage in fractured rock can be classified into: continuum seepage model, discrete fracture network seepage model and continuum-discrete coupling seepage model.
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