... precast structural concrete 预制结构用混凝土 precast unit 预制混凝土构件 precasting 预制构件 ...
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factory precast unit 工厂预制装配单元 ; 工厂预造拆配单位
precast concrete unit 预制混凝土组件 ; 预制混凝土构件 ; 预制混拟土构件
small precast unit 小型预制构件
precast concrete deck unit 预制混凝土桥面组合
precast prestressed concrete unit 预制预应力混凝土单元
precast floor unit 预制楼板构件
precast roof unit [建] 预制屋顶构件
precast prestre ed concrete unit 预制预应力混凝土单元
precast beam unit 预制梁构件
The concrete precast unit during setting period in winter season, would be most likely damaged by freezing and eventually reduced in strength and durability.
冬季施工的混凝土构件，在硬化过程中有可能遭受冻害。
Its Admixture Systems business unit specifically helps customers in the ready-mix, precast, manufactured concrete and underground construction industries.
旗下的外加剂系统部门在掺水即用型预制混凝土及地下建筑等领域对客户帮助犹大。
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