These methods are acquired via quantitative measurement of surface quality differences caused by water proof abrasive papers with various degree of roughness on the steel samples.
通过定量分析不同粒度水砂纸磨光后在钢试样表面造成的表面质量差异，找到适合不同硬度试验需要的表面质量的具体获取方法。
This paper deals with features of water-proof PVC-roll-roofing used in roof construction, the methods of roofing slope designing, mortar float-coat and paving.
介绍屋面防水施工选用的PV C防水卷材的性能，屋面坡度设计，砂浆找平层的处理，铺贴方法及各道工序的质量控制要。
This paper deals with features of water-proof PVC-roll-roofing used in roof construction, the methods of roofing slope designing, mortar float-coat and paving.
介绍屋面防水施工选用的PV C防水卷材的性能，屋面坡度设计，砂浆找平层的处理，铺贴方法及各道工序的质量控制要。
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