The characteristic, structure, raw materials, equipment, process, cost and applications of arched colour plated roofing are introduced. The foams act as insulator, seal and waterproofer in roofing.
简要介绍了用泡

保温、密封、防水的拱形彩钢屋面的特点、构造、材
、设备、施工工艺、生产成本和应用。
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Because, yes, this sounds very concerning, but, on the other hand, I think about how, like — I don't know — in the '80s and '90s, having Styrofoam was just very normal and that people weren't really even worried about plastics.
因为,是的,这

非常令人担忧,但是,另一方面,我想到了,就像——我不知道——在 80 年代和 90 年代,使用聚苯乙烯泡沫塑料是非常正常的,人们甚至都不担心塑料问题。
Now he has channeled his self-described obsessive-compulsive disorder into a green, if dangerous, project: as we walk alongside busy Houston Street, Sedaris spots a trash bag filled with Styrofoam tumbling into the road.
现在,
将被
自己称之为强迫症的习惯变成了一个环保,虽然也有些危险的项目:我们沿着熙熙攘攘的休斯敦大街散步时,赛达里斯发现一个装满泡沫塑料的垃圾袋飘到了马路上。