单词：chemically pumped laser
单词：chemically pumped laser 相关文章
By Carol Pearson Washington 30 April 2008 Ten years ago, the U.S. Food and Drug Administration approved LASIK, eye surgery with a laser that enables people to see without glasses. But about five percent of LASIK procedures fail, and those patients ca
VOA常速英语2008年（四月）
By Paul Sisco Washington 14 November 2007 At the McDonald Observatory in western Texas, a unique space program has been quietly underway for more than 30 years. It is called the Lunar Laser Ranging Program. VOA's Paul Sisco has more. Research scienti
VOA常速英语2007年（十一月）
《Pumped Up Kicks》是该独立流行乐队Foster the People发行的第一支单曲，并且收录在了乐队的第一张同名EP中。这支单曲的曲子写于歌词前，节奏明快带有重低音并且混合了电子和原声两种不同的元
英文特辑精选
现代汉语中有不少词都是英语外来语，High这个词就常和汉语一起混用，可是它真正的意思并不是开心，今天Jenny和Adam要来谈谈美国人怎么使用high。 High有什么问题？ 大家都很熟悉high的中国式
美国文化脱口秀
Most of the oil has now been pumped out of the ship, the Rena, which hit a reef on October 5th. The ship carried 1700 tonnes of heavy oil. 350 tonnes leaked into the sea. This oil killed more than 1300 sea birds and polluted the sand and rocks around
新西兰英语
今天早上 Larry 和李华和一对朋友 Charles and Lisa 约好了一起去打网球．李华会学到两个常用语： pumped 和iffy. LL: I'm really pumped about today's tennis match. How about you, Li Hua? LH: 你对今天的比赛怎么啦？ Pumped？你是不是说你很紧张啊？ LL: No, I'm
美国之音《流行美语》