关闭期间的扭矩产生阀座力，并均匀一致的作用在整个圆周周围。
Seating forces are generated by the torque during closing uniformly around the entire circumference.
看过一简单、快速的演示圆周运动中力和加速度的变化吗？
Looking for a simple, quick demonstration of forces and acceleration in circle motion?
分析认为，锯切方向直接影响着管壁的受力状态，锯片与管子的接触弧长和锯切圆周力成正比关系。
The saw cutting direction directly affects the pressed wall thickness, the contacting arc length between saw disc and pipe has direct ratio to the cutting circumference force through analysis.
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