弦长 meaning in English
chord length
chordal distance
length of chord
Examples
- The algorithm is presented , and its feasibility is verified mathematically , with which a useful technique is developed to distinguish sharp corners from rounded corners
具体给出了一种基于精化曲线累加弦长的角点检测方法，并对其可行性进行数学论证，同时提出了一种区别圆角和尖角的实用技术。 - 3 zhang c , cheng f , miura k . a method for determing knots in parametric curve interpolation . cagd , 1998 , 15 : 399 - 416 . 4 fritsch f n , carlson r e . monotone piecewise cubic interpolation
文章以四组有代表性的数据为实例，通过定义节点用样条函数方法构造三次参数样条曲线，将新方法与向心参数化法修整弦长参数化法和二次精度方法进行了比较。 - To investigate the aerodynamic design ideas and concrete methods of high performance low pressure turbine ( lpt ) at low reynolds number condition , a new lpt of high load , large chord and proper velocity distribution was designed
摘要为了探索高空低雷诺数情况下高性能低压涡轮部件的气动设计思路和设计方法，通过采用高负荷、大弦长的叶片设计和选择恰当的叶片表面速度分布形式设计了一台新低压涡轮。 - Corner detection based on accumulative chord length is invariant to rotation transformations , while the implicitly refining strategy of digital curves can improve computational precision and enhance the reliability of corner detection significantly
摘要提出基于曲线累加弦长来检测角点，可以使得检测结果具有旋转不变性，隐式精化曲线策略可以显著改善角点检测算法的计算精度，从而增强角点检测结果的可靠性。 - Systemic measure scheme is designed on the basis of product line structure and every component of measuring system is specified . secondly , tube product shape imitating , rolling imitating of on - line tube product , measuring the chord length imitating with ccd and dimension measure arithmetic - circle least square estimation are finished . lastly , according to mentioned dimension measuring method , imitating operation and the result of imitating operation are emphatically analyzed
文章首先介绍了管状产品的生产线结构，根据生产线结构设计了系统检测方案，并详细说明了检测系统各部分的组成；其次对管状产品形状仿真、管状产品在生产线上滚动仿真、线阵ccd检测弦长仿真、尺寸检测算法? ?圆的最小二乘法进行了研究；最后重点对所提出的尺寸检测方法进行仿真计算并对仿真计算结果进行分析。