结果表明，利用通用坐标转换程序，结合解析法求算面积的方法是解决无测积功能GPS测量面积的理想方法。
The results showed that using universal coordinate transform program and analytic geometry method could resolve the problem of measuring area for GPS without function of measuring area.
调节机构是将执行机构的输出位移变化转换为控制阀阀芯和阀座间流通面积变化的装置。
Adjusting mechanism is the executive body converts the output of displacement control valve spool and valve seat area change between the flow of the device.
从而说明本研究以叶面积指数和植物冠层盖度为基础进行叶片与种群间的尺度转换是可行的。
It indicates that the scale conversion between leaves level and population level based on canopy and leaves area index is feasible.
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