The article bases on the result of elastic-optic experiment and uses the energy method, roll theory and thick tube theory to calculate the contact pressure in ringent and close section.
根据全息光弹实验结果得出的轧辊接触压力的分布规律，进而利用能量方法、轧压理论及厚壁筒理论对开口孔型、闭口孔型的轧辊接触压力进行计算。
The composition of bacterial communities in the formation water is determined by most probable number method, pour plate method and roll-tube technique.
利用最大或然数法、倾注平板法和滚管法对产出水中的细菌群落状况进行了分析。
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