矿产部发言人满怀憧憬地推测，阿富汗15年内就可以实现能源自给。
Spokesmen for the ministry of mines dreamily speculate that Afghanistan could be self-sufficient in energy within 15 years.
将它做成显示器，就可一边发电，一边发光，实现能源自给自足。
Will it make it displays, can side, the side of shine, and realize power energy self-sufficient.
他们的目标是研制一款干净、易清洁、能实现水与能源自给而且每人每天费用不超过5美分的厕所。
The goal is to make a toilet that is robust, easy to clean, water - and energy self-sufficient, and costs a user less than five cents a day.
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