Bottom Platform Shifting Measure for Casting Section NO. 1 on Truss Frame of Pier NO.2 Of Mashangxi Yangtse River Bridge是什麼意思_Bottom Platform Shifting Measure for Casting Section NO. 1 on Truss Frame of Pier NO.2 Of Mashangxi Yangtse River Bridge在線翻譯_英語_讀音_用法_例句