1·The contribution of geothermal energy to the world's energy future is difficult to estimate.
地热能对世界未来能源的贡献是难以估计的。
2·Geothermal energy has been used for thousands of years in some countries for cooking and heating.
地热能在一些国家作为烹饪与供暖的热源被使用已有数千年之久。
3·LAST December California approved a power line between San Diego and the Imperial valley-a spot blessed with sun, wind and geothermal energy resources.
去年12月份，加州批准修建帝王谷到圣地亚哥的一条输电线——帝王谷同时享有太阳能，风能和地热能资源。
4·They are geothermal energy solar energy and wind power.
它们是地热能、太阳能和风力。
5·A high isolation, efficient and well-thought construction and the use of geothermal energy as the primary energy, allow the maximum energy rating.
建筑是高隔热、高效和完善的，使用地热能作为主要能源，这些使能耗比最大化。