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一、划分的目的一个建筑物(构筑物)的建成,由施工准备工作开始到竣工交付使用,要经过很多工序由很多工种配合施工。所以,一个工程质量的优劣,取决于各个施工工序和各工种的操作质量。为了便于控制、检查和评定每个施工工序和工种的质量,
1. Purpose of the division The completion of a building (structure) starts from the construction preparation work until it is completed and delivered. It requires a lot of processes to cooperate with many types of work. Therefore, the quality of a project depends on the quality of each construction process and the type of work. In order to facilitate the control, inspection and evaluation of the quality of each construction process and type of work,