摘要
CHINA has recently deployed unmanned drones to detect the levels of air pollution in northern areas of the country, to aid an inspection on the enforcement of environmental protection laws, according to a statement from the country＇s Ministry of Environmental Protection.
CHINA has recently deployed unmanned drones to detect the levels of air pollution in northern areas of the country, to aid an inspection on the enforcement of environmental protection laws, according to a statement from the country＇s Ministry of Environmental Protection.
