[纺] 挂纬织机

This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. Got a minute? Forget the scalpel, researchers at Johns Hopkins University have created a tool that can move easily through tissue, potentially making biopsies much less invasive.

发表于:2019-01-08 / 阅读(68) / 评论(0) 分类 Scientific American(一)月

WASHINGTON, May 30 (Xinhua) -- After nearly 12 days together in orbit, U.S. space shuttle Endeavour(奋进号) undocked from the International Space Station on Sunday night, NASA announced on Monday. According to NASA, the undocking took place at 11:

发表于:2019-02-02 / 阅读(63) / 评论(0) 分类 英语新闻

WASHINGTON, July 10 (Xinhua) -- U.S. space shuttle Atlantis docked with the International Space Station on Sunday morning after nearly two days of flight. Commander Christopher Ferguson guided space shuttle Atlantis to a docking with the station at 1

发表于:2019-02-08 / 阅读(35) / 评论(0) 分类 英语新闻

while, suspended from a bough, the terrific lower jaw vibrated over all the devotees, like the hair-hung sword that so affrighted Damocles. 而那只挂在大树枝上的、在一切皈依者头顶颤动着的可怕的下颚,就象是把达摩克利兹

发表于:2019-02-17 / 阅读(25) / 评论(0) 分类 白鲸记

The U.S. space shuttle(航天飞机) Discovery has completed its work at the International Space Station on its 39th and final mission, and is preparing for Wednesday's scheduled landing at the Kennedy Space Center in Florida. The shuttle success

发表于:2019-02-17 / 阅读(52) / 评论(0) 分类 英语新闻

The space shuttle Endeavour has returned to Earth for the final time, after completing a 16-day mission to the International Space Station. NASA welcomed home the Endeavour shuttle before dawn Wednesday, after the ship glided in from a safe re-entry

发表于:2019-02-18 / 阅读(58) / 评论(0) 分类 英语新闻
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bayonet scraper
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