土壤质量系统评价模型 systematic assessment model of soil quality
该理论模型可应用于土壤源热泵系统的分析和设计中。
The theoretical model can be applied to the design and analysis of soil source heat pump system.
样区土壤模型库及预测系统应用。
Application of soil model storehouse and attribute prediction system.
在现有压实检测技术的基础上，通过分析振动轮土壤系统的力学模型，建立了相应的运动方程。
On the basis of the present methods of compaction testing, the mechanical model of a vibrating roller-soil system was analyzed and its dynamic equation was established.
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