单词：cranial nerve
单词：cranial nerve 相关文章
诸多线索综合起来为我们描绘出一幅画面：那是火星遥远的过去，那时的火星还有着一层厚厚的大气层，令这颗星球温热暖和，从而使水能够在火星表面流淌。但如今，地表的水消失不见，而
60秒科学
The clues are adding up to give a picture of a distant Martian past, when the planet had a thick atmosphere that was warm enough for water to stream on the surface. But now the waters gone, and the atmosphere is so thin that any water would boil away
Scientific American(十)月
EXPLORATIONS - Four Companies Working for the Common Good Instead of Profit By Jill Moss Broadcast: Wednesday, June 08, 2005 (MUSIC) VOICE ONE: I'm Faith Lapidus. VOICE TWO: And I'm Steve Ember with E
Explorations
Experts: Solar Power Could Soon Pose Economic Threat to Electric Utilities 专家称太阳能将给电业带来经济威胁 After decades as an expensive and sometimes impractical source of energy, experts say solar power is finally coming into its o
VOA标准英语2014年(七月)
Solar power 太阳能 The third way 第三种方法 A new method of making electricity from sunlight has just been tested 一种从太阳光得到能源的新方法正在尝试 AT THE moment, there are two reliable ways to make electricity from sunli
经济学人综合
PV solar technology is more complex. When sunlight hits a PV cell, electrons in the cell are knocked out of their orbits. Electric fields channel the electrons in a current used to generate electricity。 Unlike thermal solar panels, PV technology is
英语时差8，16