PHPWIND
HELLOCQ
UID:33699
UID:32930
UID:47578
UID:74
用来保证塔的安装垂直精度,两台经纬仪同时架设在塔高的1.5倍远处,与塔基连线正交。
UID:91099
UID:77869
UID:63793
UID:84375
UID:74822
UID:3850
UID:360440
UID:22181
UID:643