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.
然而，在欧盟国家居民依靠机动车外出的次数中，有30%行程少于2千米，有50%少于5千米。
Yet, in EU countries, 30% of motorised trips are shorter than 2 km and 50% are shorter than 5 km.
然而，在欧盟国家居民依靠机动车外出的次数中，有30%行程少于2千米，有50%少于5千米。
Yet, in EU countries, 30% of motorised trips are shorter than 2 km and 50% are shorter than 5 km.
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