erection by swing method
erection by swing method
[铁道科技英汉词典]
erection by swing method旋转法施工
又称“转体施工”。
是什么意思，erection by swing method的解释，erection by swing method的翻译
erection by swing method
[铁道科技英汉词典]
erection by swing method是什么意思，erection by swing method的解释，erection by swing method的翻译