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我场本着“自力更生”的精神在1973年试制成功显微测树仪(见《林业勘查设计》1974年第3期)。该仪器能够测出树木任意一段时间内的半径生长量。为了摸索这种仪器的使用价值,今年在林场各处任意选定几种树木,并任意确定量测的时间进行了几次分批试测。方法是将三颗平头螺丝钉按顶端朝下的等腰三角形拧在树干上,将显微测树仪的底盘扣边勾住螺丝帽,测杆贴紧树干,就能从百分表中得出一次读数,隔一段时间再测一次,两次相减即
My field in the spirit of “self-reliance” in 1973, the successful trial microscopic tree detector (see “forestry exploration and design” 1974 the third period). The instrument measures the amount of radial growth of trees at any given time. In order to explore the value of the use of this instrument, this year in the forest all over the arbitrary selection of several trees, and arbitrarily determine the time of the test conducted several batches. The method is to screw the three flat top down down isosceles triangle twist on the trunk, the microscopic tree trunking machine chassis buckle hook nut cap, rod stick to the trunk, you can get from the dial indicator A reading, once again measured once in a while, twice subtracted that