maximal sampling distance 最大允许采样距离
Distance sampling technique 应用距离取样技术
Level distance sampling 水平距取样
Distance sampling method 距离取样法
distance sampling techniques 距离取样技术
distance of sampling 取样间距
least distance stepwise sampling method 最小距离逐步取样法
The new method takes the difference between the distance from sampling point to failure space and the distance from sampling point to reliable space as the output variable.
该方法以样本点距离失效空间和可靠空间的距离之差作为样本点的输出变量。
Distance between dots should be uniform in the field measurement. Sampling number should be estimated by certain believe level, estimate accuracy and variance coefficient.
田间测墒时，点与点之间的距离要均匀，取样数目可以根据一定的置信水平、估值精度、变异系数做估算。
This paper reviewed the sampling and trapping methodology and principles for monitoring the movement rate, direction and distance of arthropods between habitats in rice ecosystem.
通过对实例的剖析研究，较全面地探讨稻田生态系统中水稻害虫及其天敌在生境间迁移的监测方法和有关原理。
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