The end trumpet and end triangle can be eliminated if a rolling process with three angles rotating is used for thick wall pipe rolling and other processes for thin wall pipe rolling.
采用三转角轧制法轧制厚壁管和相反的操作法轧制薄壁管可消除喇叭口与尾三角。
The driving device is composed of two electric motor, which go to the grooved wheel through the triangle belt and drive the roller rotating in the opposite direction.
驱动机构是由两个电动机，通过传动到槽轮上拖动辊轮，按照相对方向运动旋转。
The paper established a group of inequalities of rotating symmetry in a triangle with different methods.
运用不同的方法，证明了一组三角形轮换对称不等式。
The paper established a group of inequalities of rotating symmetry in a triangle with different methods.
运用不同的方法，证明了一组三角形轮换对称不等式。
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