BPA被用在热敏纸的表面涂层中，这种热敏纸和染料发生反应从而显示黑色字迹的收据每天在数以百万的美国人手中传递着。
BPA is used to coat thermal paper, which reacts with dye to form black print on receipts handled by millions of Americans every day.
同涂层遮盖力相关的一个数值，以相同的涂层的厚度在黑色和白色背景下涂层反射系数的比值。
A value related to the hiding power of a coating. The ratio of reflectance of the coating over black and white backgrounds at equal film thickness.
因为只有极小部分的光线能够反射出涂层，因此肉眼和灵敏的探测仪所观察到的这种材料依旧是黑色的。
Because only a small fraction of light reflects off the coating, the human eye and sensitive detectors see the material as black.
一部黑色的楼梯蜿蜒通过狭窄的家，楼梯使用了白色涂层的金属穿孔板。
A black staircase that winds up through the narrow home was lined with white powder-coated metal guards that are perforated.
具有软pu涂层的黑色皮革鞋面。
同涂层遮盖力相关的一个数值，以相同的涂层的厚度在黑色和白色背景下涂层反射系数的比值。
The ratio of reflectance of the coating over black and white backgrounds at equal film thickness.
在黑色金属涂层与磷酸钙的解决办法是通过传统的浸或喷涂方法。
Coating of the ferrous metal with the calcium phosphate solution is accomplished by conventional dip or spray methods.
黑色表盘的设计可快速方便地阅读过，即使在低光条件。它提供了在三点钟马克三共进Tritnite涂层夜光指针和小时刻度及放大日期显示功能。
It offers three-hand function with Tritnite-coated luminous hands and hour markers and a magnified date display at the three o'clock mark.
黑色表盘的设计可快速方便地阅读过，即使在低光条件。它提供了在三点钟马克三共进Tritnite涂层夜光指针和小时刻度及放大日期显示功能。
It offers three-hand function with Tritnite-coated luminous hands and hour markers and a magnified date display at the three o'clock mark.
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