外国黄片网站黄色片一级视屏|国产视频-日美不卡在线视频|看欧美1级1级1级生活片儿|青青草人人插青青操干日AV|青青操在线免费观看av|一级成年国产中文字幕av一|美女黄黄视频骚货网站在线观看|欧美一级做一级a做片|少妇高潮一区二区三区99|丁香五月蜜桃久久久亚洲精品成人

Aerial photo of heliostats of molten-salt solar thermal power plant in China's Gansu

Source: Xinhua| 2019-10-24 22:14:27|Editor: Yurou
Video PlayerClose

CHINA-GANSU-DUNHUANG-SOLAR POWER-HELIOSTAT-CLEANING (CN)

Workers clean heliostats for a molten-salt solar thermal power plant in Dunhuang, northwest China's Gansu Province. (Xinhua/Ma Ning)

   Prev 1 2 3 4 Next  

KEY WORDS:
YOU MAY LIKE
EXPLORE XINHUANET
010020070750000000000000011100001385000311