The circular arc automatic door is reciprocating swing, and its motion parameters are the number of swing per minute, the size of the swing Angle and the travel speed ratio coefficient.
圆弧形自动门是往复摆动，其运动参数是每分钟摆动次数、摆角大小和行程速比系数等。
A circular arc fixed plate has the Angle scale, and one side of the circular arc fixed plate is prolonged as the caliper head which provided with two cylindrical pins.
圆弧形固定板有角度刻度，并将一边延长作卡尺头，上边装有两个圆柱销。
A circular arc fixed plate has the Angle scale, and one side of the circular arc fixed plate is prolonged as the caliper head which provided with two cylindrical pins.
圆弧形固定板有角度刻度，并将一边延长作卡尺头，上边装有两个圆柱销。
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