...l twist )43三角侧屈式(The triangle side bending)43三角屈体式(The triangle stretChing)44三角转动式(The triangle rotating)45直角式(..
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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 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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