单词:
单词: 相关文章
New Solar Cell Minimizes Environmental Risks in Manufacturing Process 新的太阳能电池减少生产中对环境的危害 Scientists in England report the development of a new solar cell that minimizes environmental risks in the manufacturing proc
SCIENCE IN THE NEWS - October 22, 2002: Nobel Science Prizes By George Grow VOICE ONE: This is Steve Ember. VOICE TWO: And this is Bob Doughty with SCIENCE IN THE NEWS, a VOA Special English program a
By Robert Berger Jerusalem 01 April 2007 German Chancellor Angela Merkel met Israeli and Palestinian leaders Sunday in the latest international bid to revive the Middle East peace process. Germany and Israel enjoy warm ties, but as Robert Berger repo
WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo
Turn Off Your Cell Phone 关掉你的手机 We went to the movie the other night. I sat in an aisle seat as I usually do, because it feels a little roomier. Just as the feature was about to start, a blonde from the center of the row got up and starte
WASHINGTON, May 11 (Xinhua) -- Researchers at Brigham and Women 's Hospital (BWH), a teaching affiliate of Harvard Medical School, have identified(鉴定) a human lung stem cell that is self-renewing and capable of forming and integrating multiple bi