Urban large-scale park greenbelts play a great role in the construction of urban greenbelts because of their particular functions.
大型公园绿地因其特殊的功能和作用在城市绿化建设中占有举足轻重的地位。
2
Later, once the advancing deserts were halted, smallholders started harvesting and selling lumber for a living, while keeping the sheltering greenbelts in place.
后来，治沙取得成功，小农开始以采收和销售木材作为生计，同时维护绿色防护带。
3
Major systems commonly include bypass tunnels, greenbelts, and roads which are used to handle the runoff which exceeds the capacity of the minor drainage system.