文章详细信息 关键词： 剖面硝态氮，综合肥料效应函数，取样深度 [gap=455]Keywords: nitrate in soil profile,integrated fertilizer response function, soil sample depth
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将取样器放入液体直到要求的取样深度。
流体流入玻璃取样器中达到取样深度即可。
The fluid circulates through the glass sampler of reaching the depth of sampling.
并讨论了土质、土壤、含水量、取样深度等对断层气氡测量的影响。
And the effects of soil condition, soil moisture content and sample depth in fault gas measurement were discussed also.
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