However, the sectional profile of groove and rake Angle are frequently prone to be below the mark even being rejected because of a large spiral Angle.

但若所加工的螺旋角较大，则易出现槽形和前角不符要求，乃至报废。

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It follows from analysis that quasi - spline with arc triangle sectional profile has the advantages of easy to be machined and convenient to be measured.

通过分析证明，以圆弧三角形为截面廓形的类花键具有加工和测量方便等优点。

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The paper mainly analyses the chain track sectional profile of non chain drive mechanism of an importing miming machine and researches on its stress state deeply.

本文着重对引进采煤机无链牵引机构的链轨截面轮廓进行分析，并对其受力进行较深入的研究。

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