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由中国林科院亚热带林业实验中心高级工程师郑义和同志发明的多功能轻便测树杆,已获得中国专利局的专利权。该测树杆由质轻、强度大、韧性好的材料所制成。多节嵌套可抽拉的套筒秆,每节均有测量刻度标,并配有三缺口的角规,因此本测树杆具有测高、测距、测每667m~2立木株数、林木胸高断面积、每公顷蓄积量等功能。该测树杆使用灵活,携带方便,使用期长,多种功能,是林业测树的理想工具。
The multi-function portable measuring pole invented by Zheng Yihe, a senior engineer of Sub-tropical Forestry Experimental Center of China Academy of Forestry, has won the patent of China Patent Office. The measuring rod made of light weight, high strength, good toughness materials. Multi-section nested pullout sleeve stems, each section has a measuring scale, and with a three-notch angle gauge, so the measuring pole with altimetry, ranging, measuring 667m ~ 2 stands per tree number, chest height Broken area, volume per hectare and other functions. The measuring pole is flexible, easy to carry, long life, a variety of functions, is the ideal tool for measuring trees in the forestry.