More than half of the world's population rely on dung, wood, crop waste or coal to meet their most basic energy needs.
全世界有半数以上人口依靠家畜粪、木柴、庄稼秸秆或煤来满足其最基本的能源需求。
2
The basic service costs 30 rupees a month, and a premium service which provides detailed local crop prices in ten states is available at twice that price.
基本服务每月花费30比索，附加服务提供十个省的农作物价格详细信息，收费翻番。
3
In this system, there are basic farming land geographic information, agronomic knowledge, crop fertilizer needing mathematics models, and data analysis methods.