单词:aromatic nitro-compound explosive
单词:aromatic nitro-compound explosive 相关文章
RANDI KAYE, CNN CORRESPONDENT: We take our shoes off, remove our laptops, and toss our bottled water all in the name of safety. But are we any safer today than we were before 9/11? Not exactly, says Bruce Schneier, author and security technologist. B
[00:01.56]Gunpowder [00:03.47]Gunpowder was invented by the Chinese [00:05.73]in the eighth century AD. [00:08.28]Early Chinese scientists discovered [00:10.64]that they could make an explosive substance [00:12.76]by mixing sulphur,charcoal and saltp
Business this week. 一周商业要闻 It was a big week for the mobile phone industry, with the announcement of two long mooted deals. 对移动电话行业来说这周很重要,这周公布了两个酝酿已久的交易。 In the first, and after
You can make your meals even healthier (and tastier, too!) while strengthening your fight against the diabetes-inducing inflammation in your body. How? You can look to nature and whole plant foods. 你可以让你的饮食更加健康(还可以更加
萨拉热窝市中心爆炸,无一人伤亡 SARAJEVO, Feb. 10 (Xinhua) -- A huge explosion was heard in central Sarajevo Monday night, and police said there were no injuries. A local police press officer told Xinhua the explosion occurred at the en