www射-国产免费一级-欧美福利-亚洲成人福利-成人一区在线观看-亚州成人

Home

Farmer builds own drones to spray crops

Updated: 2014-03-20 19:55 (chinadaily.com.cn)
Comments
Farmer builds own drones to spray crops
Zhang Aiguo (right) prepares to fly a drone in a field in Changsha, Central China's Hunan province, March 20. In 2009, Zhang, who used to be a farmer, leased about 2,000 mu (133 hectares) of cropland with his friend in Xiangtan county, Hunan province, and they bought a drone to spray pesticides on the field last year. Zhang found that this was a very efficient method, and he then designed and made several drones based on the one they had bought. He simplified the control system and installed engines brought online. [Photo/Xinhua]
Farmer builds own drones to spray crops Farmer builds own drones to spray crops Farmer builds own drones to spray crops

Amazon.com sees delivery drones

German DHL testing delivery drones

Drones' uses raise new privacy issues

Previous Page 1 2 3 4 5 6 Next Page

Most Popular
...
主站蜘蛛池模板: 特级aa毛片在线播放 | 波多野结衣免费观看视频 | 久久久久久国产精品视频 | 日产国产精品亚洲系列 | 精品久久久久久影院免费 | 久久国产精品免费视频 | 久久视屏这里只有精品6国产 | 2019天天操天天干天天透 | 国产精亚洲视频 | 亚洲最新视频在线观看 | 国产日韩精品一区二区在线观看 | 国产一国产一级毛片视频在线 | 日本免费网址 | 私人毛片免费高清影视院丶 | 免费国产成人 | 日韩国产一区二区 | 亚洲国产成人91精品 | 国产午夜精品理论片久久影视 | 草草视频在线免费观看 | 中文国产成人精品久久无广告 | 亚洲男人天堂视频 | 热久久在线观看 | 毛片在线全部免费观看 | 操欧美女| 欧美肥婆videoxxx | 第一色网站 | 东凛中文字幕 | 成人a毛片 | 国产91无套剧情在线播放 | 欧美xxxxb| 国产精品亚洲欧美一级久久精品 | 亚洲国产成人久久综合一区77 | 欧美xxxxx色视频在线观看 | 亚洲美女视频网站 | 黄色美女毛片 | 国内国外精品一区二区 | 欧美一级毛片片aa视频 | 99精品久久99久久久久久 | 成人在线免费小视频 | 欧美日韩国产亚洲一区二区 | 国产高清美女一级毛片久久 |