1) chord lengths
等弦长
2) chord
[英][kɔ:d] [美][kɔrd]
弦，弦长
3) chord length
弦长
1.
Investigation of the influence of splitter chord length on the transonic axial fan rotor;
小叶片弦长对跨声轴流风扇气动性能的影响
2.
In view of this characteristic,the setting-out technique that combines angle with chord length is adopted and has achieved good result.
阜阳师范学院新区教学楼工程,由于A区平面造型为一大圆弧,且半径较大,针对这一特点,采用了角度加弦长的放线技术,取得了良好的效果。
4) length of chord
弦长
1.
From the angles of the disign of the profile of the wing surface of an aircraft, a simple method is derived for solving the profile of the oblique section of wing surface, using the interrelation between the length of chord of the section in the same direction as airflow and that of arbitrary oblique section in this paper.
从飞机翼面外形设计的角度，利用顺气流截面弦长与任意斜截面弦长的相互关系，导出了一种求解翼面类斜截面外形的简便方法。
5) Chord angle and chord length method
弦角弦长法
6) equivalent sine
等效正弦
1.
The linear dynamic target(LDT) is designed according to the need of indoor checking and testing for the dynamic characteristic of photoelectric theodolite tracking system,based on the theory of equivalent sine and equivalent target.
以等效正弦法、等效目标法检测原理为基础,根据光电经纬仪伺服系统动态性能室内检测的需求,设计了能够提供标准正弦和等速直线目标的直线动靶标检测装置。
补充资料：长岑长
1.《后汉书．崔骃传》﹕"宪(窦宪)擅权骄恣﹐骃数谏之。及出击匈奴﹐道路愈多不法﹐骃为主簿﹐前后奏记数十﹐指切长短。宪不能容﹐稍疏之﹐因察骃高第﹐出为长岑长。"李贤注﹕"长岑﹐县﹐属乐浪郡﹐其地在辽东。"后用以称颂不为权贵所容之官吏。
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参考词条