Morningstar Quantitative Ratings for Stocks are generated using an algorithm that compares companies that are not under analyst coverage to peer companies that do receive analyst-driven ratings ...
由于汽车挡风玻璃属于夹胶玻璃，HUD的光投影到双层挡风玻璃上 ... 此专用玻璃夹层内部的PVB膜呈楔形，即玻璃呈上厚下薄的状态，起到类似于光学棱镜的作用，改变第二次反射光的传播方向 ...
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又到玻璃“自爆”高发期！选玻璃时就已经埋下隐患？夹胶玻璃 夹胶玻璃是一种安全玻璃 ... 夹层通常为聚乙烯醇缩丁醛 (PVB)或乙烯-醋酸乙烯酯 (EVA)。 优点：安全性高，即使玻璃碎裂，碎片也会粘 ...
Eastman Chemical will end production of solvent-based polyvinyl butyral (PVB) at its facility in Indian Orchard, Massachusetts, next month. The decision will affect about 60 jobs, though the firm ...
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