The traditional measuring method and estimating method by remote sensing are reviewed in detail.
传统的生物量测算方法主要是通过样方调查，采取收割法等方法；
This article mainly offers a method to achieve high-accuracy and anti-interference remote measuring circuit in which the principle of pulse-direction modulation is used.
本文主要提出了利用调节脉冲宽度的原理来实现高精度、抗干扰遥测电路的一种方法。
The status quo of the ground thermal field in the planned Beijing city proper has been systematically researched through the method of remote sensing measuring and on-spot measuring.
采用遥感卫星影像数据结合实地同步测定的方法，对北京规划市区地面热场状况进行研究。
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