A new analytic method for grounding resistance of compound grounding grids in two-layer soil is deduced in this paper.
提出计算双层土壤复合接地网接地电阻的新解析方法。
The various ingredients in tread compound were optimized with the orthogonal experimental method to lower the rolling resistance of tire tread without sacrificing its wet traction.
采用正交试验方法，对胶料各组分进行优化，使胎面胶滚动阻力降低，同时又能保持良好的抗湿滑性能。
Secondly, using dimensional analysis method, it is found the influence factors of flow resistance in compound channel with vegetated floodplains.
其次，采用量纲分析法得出滩地植被对复式河槽水流阻力影响的因素。
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