Water - proofing of buildings - part 10 : protective layers and protective measures 建筑物的防水性.第10部分:防护层和防护措施
Standard specification for aluminum pigmented emulsified asphalt used as a protective coating for roofing 用作屋顶防护层的铝着色乳化沥青的标准规范
Glass fibre fleece as layer for roof and water - proof sheeting ; definition , designation , requirements 用做屋顶和防水板防护层的玻璃纤维毛状衬料.定义名
A protective covering , structure , or organ of an animal or a plant , such as teeth , claws , thorns , or the shell of a turtle 防御器官动物或植物的防护层,结构或器官,如牙齿,爪子,荆棘或乌龟的壳
The advantages and disadvantages of different anti - corrosion methods as well as their adaptability are analyzed 还研究了不同防护层与不同金属表面粘结的剪切强度,以及不同表面处理情况对其剪切强度的影响。