代表档距Lr(m)不同气温下代表档距的安装弧垂fr(m)-40℃-30℃-20℃-10℃0℃+10℃+20℃+30℃+40℃400.050.050.060.070.090.110.140.190.28410.050.060.060.070.090.110.140.20.29420.050.060.070.080.090.120.150.210.3430.050.060.070.080.10.120.160.220.31440.060.060.070.090.10.130.170.230.3 (本文共 15714 字 ) [阅读本文] >>