以下哪项是"vehicle,model,plastic,machine"的正确意义排序()
A.塑料,范例,机械,车辆
B.范例,车辆,塑料,机械
C.机械,塑料,范例,车辆
D.车辆,范例,塑料,机械
D、车辆,范例,塑料,机械
A.塑料,范例,机械,车辆
B.范例,车辆,塑料,机械
C.机械,塑料,范例,车辆
D.车辆,范例,塑料,机械
D、车辆,范例,塑料,机械
The model has shown that this radar system, known as laser-doppler radar, can measure with absolute precision speeds varying from spaceship orbital injection (进入) velocities (速度) of five miles per second down to virtual stops--speeds of less than one ten thousandth of an inch per second. According to the scientists who are developing this system, such fine measures of velocity are of prime importance in space missions. In a rendezvous (对接) between two spaceships, or in a landing approach by a vehicle onto an orbiting space station, a bump could rip open a ship's skin, or a nudge could knock the station out of its orbit.
The light-beam radar, which operates at a frequency of trillions (百万兆) of cycles per second, could easily detect and measure the movement of a vehicle edging up to a satellite space station. A control system using so precise a signal as this would allow a huge vehicle to dock at a space station as lightly as a feather.
Laser-doppler radar ______. ()
A.measures the movements of a spaceship by means of light beam
B.makes use of microwaves
C.makes use of sound waves
D.Both A and B
A.FCEV:Fuel Cell Electric Vehicle
B.REEV:Range Extend Electric Vehicle
C.HEV:Hybrid Electric Vehicle
D.PHEV:Plug-in Hybrid Electric Vehicle
A.Model S、Model X、Model Y均可以免费试用一年
B.可以将车内的网络当作热点分享给手机使用
C.高级移动链接服务订购按月收费可通过Tesla账户购买
D.车主提车后可以随时登录Tesla账户将车辆升级为高级移动链接服务
A.2D平台及以下机组预付款已付3个月且投料款已付1个月,可安排生产
B.Model X机组预付款已付4个月且投料款已付2个月,可安排生产
C.Model 4机组预付款已付6个月且投料款已付3个月,可安排生产
D.若投料款支付不及时,应限制生产或停止发货