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- Single diameter of a ball 球单一直径
- The interior diameter of a hole,tube,or cylinder. 内径洞、管或圆柱体的内径
- A sharp reversal of direction, as of a ball carrier in football. 急转向相反方向急转，如橄榄球比赛中的持球球员的反切动作
- The diameter of the objective of a telescope. 孔径望远镜物镜的直径
- A transfer of a ball or puck between teammates. 传球在队员间传递球或冰球
- The interior diameter of a hole, tube, or cylinder. 内径洞、管或圆柱体的内径
- The upward course of a ball driven in a high arc. 向上的路线被击出高弧线的球上升期间经过的路线
- To propel(a ball)by means of a punt. 踢用踢的方式来驱策（球）
- A march of all the guests at the opening of a ball. 列队前进在舞会开始时所有宾客的行进
- To propel(a ball) by means of a punt. 踢用踢的方式来驱策（球）
- But instead of a ball, frisbee is used. 但是该运动使用的不是球，而是飞碟。
- In its simplest form, it consists of a ball suspending by a string. 最简单的形式是用细绳吊挂着一个球。
- The test results show that the spheric particle size is not cubuge particle size as the single diameter of spheric particle, but to as a series of combination of particle distribution. 球形颗粒在激光粒度测量中既不等效于等体积的球形颗粒也不等效于其他的某种单一直径的球形颗粒，而是一系列大小不同的球形颗粒的组合；
- The diameter of the inside of a round cylinder, such as a tube. 口径圆柱体内侧圆的直径，如管道
- Any two diameters of a circle intersect each other. 圆周内两直径必相交。
- This paper describes the priciple and method of measuring the pitch diameter of a large diameter sawtooth thread with a single ball,and introduces in detail the measuring device to realize the method. 在普通螺纹中径合格性判定准则泰勒准则的基础上,提出只用螺纹实际中径的测量结果判定螺纹合格性的简单判定方法。
- The rotational angle of a ball around its rotational axis. 转轴角-----球旋转时转轴的倾斜的角度。
- The diameter of the tree-trunk is about 2 meters. 这树干的直径大约是2米。
- Nanotechnology, a field whose name comes from nanometer -- a unit of measure one-billionth of a meter, or a mere 10 times the diameter of a single hydrogen atom. 纳米技术的名字来源于微小的度量单位纳米--相当于1米的十亿分之一,或者仅仅是氢原子的10倍。
- The ratio of the circumference to the diameter of a circle. 圆周长度与圆的直径长度的比。
