彩虹-4在我国西北某机场进行飞行训练期间，卫星通讯天线方舱已经展开。[陈博渊 / 摄]

The satellite dish for remote communication and data link is unfolded near the apron of an undisclosed airport in northwest China as several CH-4 drones undergo test flights in mid-June. [Photo by Chen Boyuan / China.org.cn]