The flow function method was applied to the process of screw rolling balls in the paper. The computing formulas of rolling power and force were given. Finally the computing example was presented.

采用流函数方法，对螺旋孔型斜轧过程进行了分析，得到了轧制过程力能参数的计算公式，并进行了实例计算和比较。

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The mundane job sparked Zhou's interest in the strange game -- he started sneaking out at night, rolling balls on the green and working on his swings with a broken club.

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"The 50-50 balls rolling on the ground, somehow it seemed like they'd pick them up and get a basket when we really needed a stop, " Jerian said.

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Woods estimated that tee balls were rolling 20 yards farther than earlier in the week.

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