Deposing EM38 horizontally at different heights above the ground, the variation of EM readings has a relation to the salt contents in different depths of soil layer.
将EM 38水平放置在地表以上不同高度，仪器e M读数随高度的变化与不同深度土层的盐分含量分布有关。
Deposing EM38 horizontally at different heights above the ground, the variation of EM readings has a relation to the salt contents in different depths of soil layer.
将EM 38水平放置在地表以上不同高度，仪器e M读数随高度的变化与不同深度土层的盐分含量分布有关。
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