1·Ozone forms a protective layer between 12 and 30 miles above the Earth's surface.
臭氧在距地球表面12至30英里的地方形成一个保护层。
—— 《柯林斯英汉双解大词典》
2·Varnish is the glossy protective layer applied to wooden furniture and other surfaces.
清漆是用于木质家具和其他表面的光滑的保护层。
3·To cover with a thin protective layer.
地面上覆盖着一层积雪。
4·To cover with a thin protective layer.
汽车上覆盖着一层厚灰。
5·(botany) outer tissue of bark; a protective layer of dead cells.
(植物学)树皮组织外部的；由死细胞组成的保护层。
6·Thic coat serves as an adhesive between cells and as a protective layer.
这一层负责细胞间的连接，并作为细胞的保护层。
7·Thic coat serves as an adhesive between cells and as a protective layer .
这一层负责细胞间的连接，并作为细胞的保护层。
8·As a protective layer of the earth - the ozone layer also tore a large hole.
身为地球的保护层-臭氧层亦破了个大洞。
9·There should be put in the box at the bottom of the box as a protective layer.
还有放入之前应该用一下纸放在箱子底部作为保护层。
10·Chemicals form a protective layer that resists both oil and water-based stains.
化学物质形成了一个抗油污和水渍的保护层。