Cleantech refers to the technology that is itself environmentally friendly or that helps reduce environmental problems; or the business sector that produces such technology.

　　清洁科技指的是本身就很环保，或者能帮助减少环境问题的科技，也可以指生产此种技术产品的商业部门。

　　Venture capital investment in clean technology businesses rose sharply in 2007, reflecting political and consumer support for a greener economy.

　　2007年，对清洁科技产业的风险投资出现大幅上升，反映出政治人士和消费者对环保经济的支持。

　　Clean applications — which include renewable power, energy efficiency and recycling — are seen as particularly promising areas.

　　清洁科技应用被视为非常有发展前景的领域，包括可再生电力、提高能源效率及回收利用。