计算结果表明，管径大小对管、土相互作用影响很大；
The results indicate that pipeline diameter is important to the interaction between pipeline and soil;
分析参数有：倾斜角度、管径大小、气液比和摩阻系数等。
Analyses parameter have inclined Angle, pipe diameter size, gas liquid ratio and friction factor and so on.
此外，讨论了管内流速、管径大小和浓度对平均阻力系数的影响。
In addition, the influences of the parameters such as diameter, velocity and concentration of petroleum coke on the average coefficient of flow resistance were discussed.
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