precast
【建筑】预制混凝土结构单元（预制混凝土产品）
precast concrete building block (precast concrete product)
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相关词条
precast concrete【建】
prefabricated wall (precast wall)
precast beam floor
prefabricated concrete beam (precast concrete girder)
precast concrete compound unit (precastconcrete component)
eccentrically-precompressed precast-concrete pile
prefab construction (precast construction)