消化槽;消化池

Fuel Cell Cost-Cutting

By Caty Weaver Broadcast: July 25, 2003 This is Bill White with the VOA Special English Environment Report. Researchers say they have found a way to reduce the cost of some 1)fuel cell production. The

发表于:2018-12-01 / 阅读(105) / 评论(0)

VOA2003（下）-环境与健康

高中英语人教版必修3 07

[00:04.10]diet energy fibre digestion [00:11.08]日常饮食精力纤维消化力 [00:18.05]protective spaghetti bean cucumber [00:25.43]领悟意大利式细面条豆，豆科植物黄瓜 [00:32.81]mushroom lemon balance balanced [00:40.63]蘑茹

发表于:2018-12-13 / 阅读(137) / 评论(0)

高中英语人教版必修

NPR 2008-07-08

Democratic presidential hopeful Barack Obama cancelled a planned appearance in North Carolina today when his plane had mechanical problems. But speaking in St. Louis where the plane landed, he outlined proposals for revitalizing the sagging US econo

发表于:2019-01-08 / 阅读(33) / 评论(0)

2008年NPR美国国家公共电台七月

Researchers make sperm from stem cell in dish

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

发表于:2019-02-04 / 阅读(126) / 评论(0)

英语新闻

Turn Off Your Cell Phone 关掉你的手机

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

发表于:2019-02-07 / 阅读(165) / 评论(0)

趣味英语

U.S. researchers discover human lung stem cell

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

发表于:2019-02-18 / 阅读(119) / 评论(0)

英语新闻

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argon welding machine