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℃400.080.090.110.140.180.230.320.430.53410.090.10.120.150.190.250.340.450.56420.090.110.130.160.20.270.370.480.59430.10.110.140.170.220.290.390.510.62440.10.120.150.180.240.320.420.540.6 (本文共 15607 字 ) [阅读本文] >>