Itusedtobemostlythemilitarythatusedsmall,unpilotedaircraft,called"drones".Thelittleplaneswereverycostly.Butastheyhavedroppedinpricemorepeoplehavebeguntousethem.Rescueworkersandfarmersareamongthenewusers.Thefastrateofthedevelopmentofcomputertechnology,imagesensingdevices,satellitenavigation(卫星导航)andsmartphoneshasled...
根据第一段中“It used to be mostly the military that used small, unpiloted aircraft, called ‘drones.’ The little planes were very costly. But as they have dropped in price more people have begun to use them. (过去主要是军队使用的小型无人驾驶飞机,称为“无人机”。这种小飞机非常昂贵。
根据第一段的“It used to be mostly the military that used small, unpiloted airplane, called “drones”. The little planes were very costly.(过去使用小型无人驾驶飞机的主要是军方,这种飞机被称为“无人机”。 这种小飞机非常昂贵)”可知,过去人们使用无人机的关注点是它们的价格。选B项。 (2)题...
The aircraft (飞行器) may beremotely controlled or can fly a 81 through flight programs intheir systems. The little planes used to be very costly. In the past,they were mostly used in the military (军事). But as they have d82 in price more people have begun to use them. Rescue ...
DJI does not market or sell our products for military use. DJI does not provide after-sales services for products that have been identified as being used for military purposes. DJI has unequivocally opposed attempts to attach weapons to our products. ...
weeks against urban centers and infrastructure, including power stations. At just $20,000 apiece, the Shahed is only a fraction of the cost of higher-tech missiles and conventional aircraft. The Kalibr cruise missile that Russia has used widely in Ukraine costs the military about $1 million ...
Basically,a drone is aflying robot The aircraft(飞行器) may be remotely(3)cor can fly(4)a through flight programs in theirsystems. The ittle planes used to be very costly In the past they were mostly used in themilitary(军事). But as they have dropped in price more people have begun...
By Reuters | Jan. 5, 2021, at 7:03 a.m. Save More Iran Tests Drones in Military Exercise More Reuters Drones are seen during a large-scale drone combat exercise of Army of the Islamic Republic of Iran, in Semnan, Iran January 4, 2021. Picture taken January 4, 2021. Iranian Army ...
Basically, a drone is a flying robot.The aircraft may be remotely controlled or can fly a Ithrough flight programs in their systems. The little planesused to be very costly. In the past, they were mostly usedin the military(军事). But as they have d 2 in price, more people have ...
Land-border security is currently an important aspect where drones are used to help check illegal activities and more (Shishkov et al., 2017; Yaacoub and Salman, 2020). It is the military demand for drone use that has led to the spread of the drone technology into civilian context specially...