圆锥指数仪是农业上用于测量土壤压实度的专用设备。
Cone index penetrometer is a special apparatus widely used for assessing soil compaction in agriculture.
结果显示压实度随塑性指数和黏粒含量的增加而减小，同时证明塑性指数和黏粒含量有较好的相关性；
The results showed that degree of compaction reduces as plasticity index and clay content increase, which also prove the relationship between plasticity index and clay content;
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