闭合环纬线变化率,rates of change of the closed circuits
closed traverse loop闭合导线环
1.The paper introduces a method of horizontal control survey of tunnel s exterior by adopting polygonclosed traverse loop, assumed independent coordinate system , rigorous adjustment , adopting approximation to estimate the lateral error of tunnel and the calculation of precise kilometer and curve turn angles,thus the throughout accuracy of the tunnel was improved.介绍了采用多边形闭合导线环、假设独立坐标系统、严密平差的方法进行隧道的洞外平面控制 ,采用近似方法估算隧道的横向贯通误差 ,以及精测里程和曲线转向角的推算 ,从而达到了提高隧道贯通精度的目
3)df/dt blocking频率变化率闭锁
4)linear expansivity线变化率
1.The results showed that thelinear expansivity and apparent porosity of the samples increased with increasing the percentage of matrix materials and aggregate size.结果表明,随着基质料含量的增加和骨料粒度的增大,试样的线变化率和显气孔率逐渐增大;随着成型压力的增加,试样的显气孔率明显减小,线变化率增加。
5)curvature of parallel纬线曲率
6)Au/dt blocking电压变化率闭锁
延伸阅读
闭合【诗文】：闭合孤城剩放慵，桐江清绝胜吴松。云收忽见北山雪，月落正闻西寺钟。世味老来无奈薄，土思病後不胜浓。蓴羹岂止方羊酪，轻许平生笑士龙。【注释】：【出处】：
