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。
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。
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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