A study was made on maximum gradient of ferry trestle bridge for Yanda Railway. The principle of max. gradient computation is described and the formula for computation of maximum gradient is derived.
2
以三轴汽车为例，推导出多轴汽车的驻车极限坡度计算公式，并对其影响因素进行分析。
Taking three-axle vehicle as an example, the calculation formula of parking grade limit of multi-axle vehicle is derived with its influencing factors analyzed.
3
在前人的研究基础上，推导出了向下倾斜管道沉降性浆体的水力坡度计算公式。
On the basis of forefathers' research, we derive and publish hydraulic gradient of settling slurry in downward-inclined-pipeline.
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