On 11 April, the Central Meteorology Observatory continued to issue sandstorms early warning: affected by cold air winds, it is expected that from 8 to 12 April in the southern part of the country, in the Grande-Mongolia, in the east of Gansu, in Ning summer, in the north-central area of Java, in the mountains, in the north of the river, in Beijing, injing, in the east of the mountains, in the south of the river, in the northern part of the lake, in the south-west of the country, in the weste...