... curvature radius曲率半径；转弯半径；弯曲半径 radius rod半径杆；径向杆 polar radius极半径；地球极半径 ...
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采用极半径不变矩作为描绘子对平面单足足迹进行粗匹配实验。
The plane single-footprint was coarse matched by polar-radius invariant moment as descriptors in this paper.
换句话说，如果按照这个比例制作一个半径30厘米的地球仪，那么它的赤道半径和极半径仅相差1毫米！
In other words, if according to the proportion of production with a radius of 30 cm of the globe, so its equatorial radius and the polar radius is only a difference of 1 mm!
对割前脱联合收割机摘脱割台流场特性进行了分析， 认为摘脱滚筒周围气流速度随极半径增加而减小，方向与极半径垂直，建立了气流流速分布方程。
The air flow rate around stripped rotor was analyzed and studied. The velocity decreased with the increasing of the radius and the direction was perpendicular with the direction of radius.
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