For each specimen, cracks appeared on the chord connecting face, and extended along the weld connecting the plate and chord, which led to the performance degradation and failure of the connection.
对每个试件，裂纹出现在弦管连接表面，沿弦管与节点板的连接焊缝扩展，并导致性能退化及破坏。
2
This article has extended a property of the right Angle chord of the circular cone curve to the general cases.
本文将圆锥曲线的直角弦的一个性质推广到了一般情形。
3
The main reason of extended stall margin was that about 75% axial chord of the tip flow field has been improved.