This is Scientific American's 60-Second Science. I'm Steve Mirsky . Got a minute ? [Radio sound:] Northeast 480 you are cleared for landing, Northeast 480 you are cleared for landing. That same radar technology that guides aircraft and tracks hurrica

发表于:2019-01-07 / 阅读(51) / 评论(0) 分类 Scientific American(十二)月

equipment是不可数名词,作装备,设备解。不能说equipments或an equipment。 例如:The building is supplied with modern office equipment. 这幢楼配备了现代化的办公设备。 You will be satisfied with the kitchen equipment

发表于:2019-02-02 / 阅读(59) / 评论(0) 分类 英文语法词汇

美国海军洗礼新航母 NEWPORT NEWS, the United States, Nov. 9 (Xinhua) -- U.S. Navy on Saturday christened the first ship of a new class of aircraft carriers after the 38th U.S. President Gerald R. Ford. A special ceremony was organized to mark

发表于:2019-02-03 / 阅读(45) / 评论(0) 分类 英语新闻

Science and technology 科学技术 Low-cost radar 低成本雷达 A programme worth watching 值得一看的节目 How air-traffic control can use television signals to plot aircraft 空中交通管制局如何利用电视信号找出飞行器位置?

发表于:2019-02-05 / 阅读(38) / 评论(0) 分类 经济学人科技系列

OTTAWA, Jan. 27 (Xinhua) -- U.S. Secretary of Defense(防卫,防护) Robert Gates said here on Thursday that he expects Canada's continued support for the F-35 joint strike fighter plane program, which is under fire from opposition politicians he

发表于:2019-02-07 / 阅读(37) / 评论(0) 分类 英语新闻

The Kogalymavia airline flight came down just 23 minutes after taking off from Egypt's Sharm el-Sheikh for the Russian city of St. Petersburg. It's believed the plane had 224 people on board, 7 of whom were crew members. The Russian embassy is still

发表于:2019-02-08 / 阅读(20) / 评论(0) 分类 英语新闻