precasting

1.In harbour construction, precasting caissons with slipform construction technology is a new attempt.

港口施中，利用滑模制沉箱是一种新的尝试。

2.The technique of pier integral precasting at the sea was researched and applied in the innavigable section construction of Donghai Bridge(the first bridge at the sea in China).

上墩柱整体制吊装在我国第一座外桥梁东大桥非通航段施中得以研究和全面应用。