[化工] 烈性炸药；高爆炸药；猛炸药

FBI - 揭密联邦调查局 - 3

Back at the explosives lab, examiners use a high-tech instrument called a Raman spectrometer, a device that determines if a package contains explosive material. With the Raman, what we are doing is th

发表于:2018-12-07 / 阅读(43) / 评论(0)

揭秘联邦调查局

FBI - 揭密联邦调查局 - 2

Atlanta, Georgia, a terrorist bomb explodes in Centennial Olympic Park, killing one woman and injuring hundreds. North Caldwell, New Jersey, an advertising executive is killed when he opens a mysterio

发表于:2018-12-07 / 阅读(30) / 评论(0)

揭秘联邦调查局

IN THE NEWS - Missing Explosives in Iraq

IN THE NEWS - Missing Explosives in Iraq By Cynthia Kirk Broadcast: Saturday, October 30, 2004 This is Steve Ember with In the News in VOA Special English. On Monday, the United Nations nuclear agency

发表于:2019-01-02 / 阅读(50) / 评论(0)

教育与新闻

SSS 2008-09-01

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute?. [Spray sound.] Killing bugs? No. [Spray sound.] Deodorizing the bathroom? No. [Spray sound.] Checking for explosives, yes. Because chemists at the University of Califor

发表于:2019-01-08 / 阅读(79) / 评论(0)

Scientific American(九)月

SW China colliery blast kills 3, injures 4

GUIYANG, Feb. 19 (Xinhua) -- Three people were killed and four others injured, including three who were seriously injured, in a coal mine blast in southwest China's Guizhou Province, local authorities said Tuesday. The blast occurred around 5:25 p.m.

发表于:2019-02-04 / 阅读(55) / 评论(0)

英语新闻

德克萨斯州机场恢复航班

HOUSTON, July 12 (Xinhua) -- A regional airport in the U.S. state of Texas has reopened Friday after a bomb threat closed the airport for a few hours, local media reported. The Lubbock Preston Smith International Airport, located in Texas's northwest

发表于:2019-02-08 / 阅读(31) / 评论(0)

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