对衡量急回运动特性程度的行程速比系数的可能取值范围进行了严密分析；
The possible values of advance-to-return-time ratio, which is used to measure the degree of quick-return for crank-rocker mechanism, are analyzed precisely.
阐述了确定行程速比系数和的平面曲柄摇杆机构最小传动角位置和大小的新方法。
According to its equivalent mechanism-crank rocker mechanism, driving performance and minimum driving Angle position of movable tooth is analyzed.
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。
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。
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.
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