Tthey formed complicated undergroundsteam caves, which have good or bad influence on tourism, water supply, water power energy utilization, mining and underground construction.
它们在旅游、供水、水能利用、采矿及地下工程建筑等方面对人类有着重要的利、弊影响。
2
The most common technique in new projects involves injecting the bitumen with steamunderground.
在新的工程中最常用的技术,则是往地下的沥青中注入蒸汽。
3
These underground reservoirs of steam and hot water can be tapped to generate electricity or to heat and cool buildings directly.