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- A ratio describing the shape of a conic section. 描述圆锥曲线部分形状的比率。
- The polar line of a point with respect to a conic. 一点相对于一条二次曲线的极线。
- The interior diameter of a hole,tube,or cylinder. 内径洞、管或圆柱体的内径
- The diameter of the objective of a telescope. 孔径望远镜物镜的直径
- The interior diameter of a hole, tube, or cylinder. 内径洞、管或圆柱体的内径
- diameter of a conic 二次曲线的直径
- Any two diameters of a circle intersect each other. 圆周内两直径必相交。
- 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
- The ratio of the circumference to the diameter of a circle. 圆周长度与圆的直径长度的比。
- The axis of a circle is its diameter. 圆的轴线是其直径。
- The diameter of a golf cup or a hole set at 4 1/4 inches. 高尔夫球洞的直径被设定在4.;25英寸。
- The diameter of the tree-trunk is about 2 meters. 这树干的直径大约是2米。
- The pond has a diameter of three hundred metres. 这池塘直径有三百米。
- conjugate diameters of a conic 二次曲线的共轭直径
- The cake we made was somewhat of a failure. 我们做的蛋糕不大成功。
- Measure the diameter of this circle. 量一下这圆的直径。
- We must gauge the diameter of wire first. 我们必须先测量电线的直径。
- The pond has a diameter of 2 hundred meters. 这池塘直径有两百米。
- Will you partake of a drink with us? 和我们一同喝一杯好吗?
- He doubles the parts of a farmhand and a miner. 在这出戏里他既扮演雇农又扮演矿工。