Technological improvements are needed so that wind, solar and hydrogen can be more feasible parts of the energy equation.
需要改进技术,提高风能、太阳能和氢能在能源等式中的可行性。
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He also addressed other potential forms of energy creation, including hydrogen and solar.
在演讲中,盖茨还涉及到能源生产的其他潜在形式,包括氢能和太阳能。
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London (CNN) — There are now more alternative energy cars on the road that ever before — solar ones, hydrogen ones and fast electric ones like Tesla Motors' Roadster.