在工业与民用建筑施工中,经常谈到50线这一工程术语,只要是直接参与施工的人员,不论是工长、技术员还是技术工人,一提到50线就知道它的含义及其作用。简单地说,50线就是以设计的楼地面上表面为基点,向上量取50厘米,在结构内墙面上弹出水平墨线,这条墨 In the construction of industrial and civil buildings, the 50-line engineering term is often referred to. As long as it is a person directly involved in construction, whether it is a foreman, a technician, or a skilled worker, the meaning and role of the 50-line line will be known. Simply put, line 50 is based on the upper surface of the floor of the design building. It measures 50 centimeters upwards, and the horizontal ink line pops up on the inner surface of the structure.