Stable Mmaterial: to use the high cost construction steel, aluminum metallic material, guaranteed that post, the adjustinglever and link lever to use durably and not easy to damage.
材料坚实：采用造价较高的钢、铝金属材料，确保立柱、调节杆、连接杆结实耐用，不易损坏。
2
As an important economic lever, tax revenue has functions of promoting productivity anel adjusting resource allocation.
税收作为重要的经济杠杆，其具有促进生产，调节资源配制的功能逐渐显现出来。
3
Studies on adjusting the water resource configuration with the price lever in Guanzhong area.