In the third chapter, precession cone semi-angle is discussed. 第三章主要討論進(jìn)動(dòng)錐角的問(wèn)題。
Also discussed are relevant issues concerning use of the equation of piercer roll opening to determine the said conical angle. 探討了利用斜軋穿孔機軋輥開(kāi)度方程來(lái)選擇頂頭平整段錐角的有關(guān)問(wèn)題。
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