1·Aim Detecting the elementary composition and features in the natural gas in Xi 'an geothermic fluid, and researching it's theoretical and economic significance.
目的查明西安地热流体中气体的基本组成和特征，探讨其理论和经济意义。
2·The factory USES geothermic energy, natural lighting and natural ventilation.
该工厂使用地热能源，自然采光和自然通风。
3·A geothermic system where using a small fan, air is drawn from the bedroom through 30cm diameter pipe buried underground.
阿地热系统在使用一个小风扇，空气是来自卧室通过埋在地下30厘米直径的管道。