用一个小辊子轻轻地在面皮上滚一下，确保两片面皮完全粘在一起。
Lightly roll over the top with a rolling pin to ensure the edges of the ravioli are firmly pressed together.
阐述了小模数渐开线花键的滚轧成形，滚轮的设计及制造。
The article described the rolling forming of the little modulus involute spline, designing and manufacturing of the roller.
并且使受电弓框架垂向位移和侧滚角度足够小，弓网接触压力达到车辆正常曲线通过时的水平。
In the mean time, the vertical and roll motions of the pantograph fame should be as small as possible, so that to make the contact force as normal as the conventional train.
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