And because the key component of solar cells is an expensive, highly purified form of silicon, there's a real economic benefit to this design.
VOA: standard.2010.02.19
They will be made available free to the public via the internet, so this is a way of allowing the world to benefit from what we all do at Yale.
它们会通过互联网向公众免费开放,这样全世界的人都能从耶鲁的课程中有所收获,我们要做的。
They will be made available free to the public via the internet, so this is a way of allowing the world to benefit from what we all do at Yale.
它们会通过互联网向公众免费开放,这样全世界的人都能从耶鲁的课程中有所收获,我们要做的。
应用推荐