The conference was to be held in the underground bunker, a cold, damp, airless shelter lined with concrete . 会议将在一个用混凝土衬砌的地下掩体里举行，那里阴暗湿冷而且空气稀薄。
One could almost hear the roots sucking the earth, the stalks growing, the underground streams trickling . 人几乎能听到植物的根在吸收大地养料，茎干在长高，地面底下的小河在汩汩地流着。
The propagation of these temperature changes into the underground is far deeper than that of the annual temperature variations . 这种温度变化对地下的波及深度远远超过年温度变化的影响深度。
This book presents in systematic form some of the available numerical techniques for solving such underground flow systems . 本书以系统的形式提出了一些解决这类地下水流体系的现行数值方法。
Sometimes magma does not melt its way to the surface, but acting under the pressure of surrounding rocks, flows underground . 有时岩浆并不一直熔化到地表，而是在围岩压力的作用下在地底下流动。
the high content and the high water temperature favour the solution of salt and metals from the underground formations. 高含量和高水温促进了地下岩层里盐类和金属的溶解。
The rapid expansion of the bubble of hot, high-pressure gases formed in the underground burst initiates a shock wave in the earth . 由于地下爆炸所形成的热高压气泡迅速澎胀，在地面上便产生冲击波。
Jones has reported the use of a holding pond and controlled discharge of chloride waste, where underground disposal was prohibited . 琼斯报道了在禁止地下处置的情况下，采用收集池和控制含氯化物废水的排放。
Limiting the extraction of great amount of heat from the underground even more is the low thermal conductivity and low thermal diffusivity of rocks . 由于岩石的热导率和热扩散率都比较低，更加限制了地下热能的大量抽取。
Up to now, we have treated the stationary temperature field under the influence of lateral changes of thermal conductivities in the underground . 截至目前为止，我们讨论的一直是处于地下热导率侧向变化影响下的稳定温度场。
