Gyroscopes are used in navigational instruments for ships, aircraft, and spacecraft.陀螺仪用于船舶 、 飞机和宇宙飞船中的导航设备.The principle, characteristics, classification and key technologies of fiber - optic gyroscopes are summarized.综...
China has almost 15 million subscribers to satellite and cable television.中国有将近 1,500 万卫星电视和有线电视用户。About 60,000 subscribers have special adapters to receive and decode the signals.大约6万用户拥有特殊的适配器来接收和转换信号。No.1 Internet sea...
箭猪身上长满了刺.A porcupine is covered with prickles.美洲箭猪,豪猪:几种带刺动物中的一种, 如豪猪,类似刺猬.Any of several spiny animals, such as the porcupine that are similar to the hedgehog....
We should encircle the enemy forces completely and let none escape from the net.我们应该四面包围敌人不使一人漏网.And it takes quite a few people to encircle its massive trunk . "说着他伸出两臂,做个 搂抱 的姿式.A similar system is used to contact the ...