Do you think China aerospace science and technology with world-class power gap is how many years?

你感觉中国在航天科技上与世界一流大年夜国的差距是几许年？

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The satellite was developed by the China Academy of space Technology under the China Aerospace Science and Technology Corp.

这颗卫星是由中国空间技术研究院的中国航天科技集团制造。

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Here shows us the energy saving in different ways from home, living, industrial three fields, from daily lighting to aerospace science and technology.

这里从家居、生活、工业三方面向我们介绍展示了不同领域里节能环保的方式，小到日常照明，大到航天科技。

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