The surface preparation as described in Section 4 shall apply if the additional layer is applied outside the manufacturer's recommended maximum over coating period.

如果额外涂层的涂敷时间超出厂商推荐的最大涂敷期限的话，应进行第4部分提到的表面预处理。

youdao

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.

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。

youdao

An un-pigmented coating. Can be a protective coating over a coloured or metallic basecoat or metal (example - brass).

一种没有颜料的涂层，罩在有颜色或金属效果的底涂上面起保护作用。

youdao

What is going to be fun is to see what happens to that anodised coating over time.

FORBES: It's The iPhone 5's Aluminum Case That's Causing Problems For Apple and Foxconn

The work was inspired by tears, which, when grouped together, form a coating over our eyes with multiple functions.

BBC: New material can halt runny liquids on demand

Matching its older sister's 10.1-inch Gorilla Glass screen, there's now an all-over splash resistant coating (inside and out), with those intriguing cut-off corners we've seen already there to aid the ergonomics of handling the slab.

ENGADGET: Motorola Xoom 2 hands-on (video) Hands-on