Rotor blades rotate almost same speed of with same circumference speed with injected gas speed from LV pocket.
转子风叶的圆周线速度几乎与LV气室喷出的气体速度相同。
The boundary line of a circle.
圆周一个圆的边界线
Circumference:The boundary line of a circle.
圆周:一个圆的边界线.
epicycle reduction gear train
套接式周圆减速齿轮
Students: The length of the curve making a circle is called the perimeter.
生：围成圆的曲线的长度叫做圆的周长。
That point falls on the circumference of the circle.
那一个点落在这圆的圆周线上。
A line segment that joins the center of a circle with any point on its circumference.
圆半径将圆心与圆周上任一连接起来的线段
A Rapid Defect Detecting Algorithm of Bottle's Rim Based on Central Location and Three-Circle Method
基于圆心定位的瓶口三圆周快速缺陷检测算法
The curve traced by a point on the circumference of a circle that rolls on a straight line.
圆滚线，摆线圆周上任一点在一条直线上滚动时所形成的曲线
Critical Speed of Circumference Movements in Vertical Planes;
竖直平面内圆周运动的临界速度问题
An Analysis on the Uniform Speed Circumrotation of Rigid Body;
从匀速圆周运动谈刚体的定轴匀速转动
An arc be a part of the circumference of a circle or other curved line
弧是圆周或曲线的一部分
circumferential force
切线力, (沿着圆周作用的)切向力
just as the string keeps the stone moving in a circle.
就像线强拉着石块做圆周运动一样，
An arc is a part of the circumference of a circle or other curved lines.
弧是圆周或曲线的一部分。
"cardioid:a heart-shaped plane curve, the locus of a fixed point on a circle that rolls on the circumference of another circle with the same radius."
心脏线:一种心形的平滑曲线,圆周上一固定点绕另一具有相同半径的圆的圆周转动的轨迹.
A heart-shaped plane curve, the locus of a fixed point on a circle that rolls on the circumference of another circle with the same radius.
心脏线一种心形的平滑曲线，圆周上一固定点绕另一具有相同半径的圆的圆周转动的轨迹
The curve described by a point on the circumference of a circle as the circle rolls on the outside of the circumference of a second, fixed circle.
外摆线一个动圆沿另一个定圆外侧滚动时，动圆圆周上一点的轨迹曲线