Mr. Ng 不推薦使用 Google翻譯 ^_^: Translate en To zh-TW precast --------- 預製
0_0: Definitions of precast
# verb. - cast (an object or material, typically concrete) in its final shape before positioning. * these ground beams were designed to allow the contractor to precast them
# adjective. - (of an object or material, typically concrete) having been cast in its final shape before positioning. * precast concrete beams