After a foundation trench is excavated, a ship is located by riprapping to form the foundation bed, and the foundation bed is leveled by a platform type foundation bed riprapping leveling ship.
基槽开挖后，船舶定位抛石成基床，用平台式基床抛石整平船将基床整平。
After a foundation trench is excavated, a ship is located by riprapping to form the foundation bed, and the foundation bed is leveled by a platform type foundation bed riprapping leveling ship.
基槽开挖后，船舶定位抛石成基床，用平台式基床抛石整平船将基床整平。
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