The traditional measuringmethod 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；
2
This article mainly offers a method to achieve high-accuracy and anti-interference remotemeasuring 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。
3
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.