小型预制构件
small precast element
Small prefabricated piece
预制构件
prefabricated components
prefabricated part
precast element
prefabricated component
prefabricated member
precast concrete element
PRECASTING
precast reinforced concrete member
precast segment
prefabricated unit
precast unit
building block
prefab
海工工程混凝土
ocean engineering concrete
中国科学院南海海海洋研究所
South China Sea Institute of Oceanology
academia sinica
沉箱预制工艺
precasting techniques of caisson