overlay是什么意思？

overlay

例句

• Set these to Overlay and 40 % and 100 % Opacities for the larger and smaller ones respectively. 将这些设置为覆盖,最外圈和最小圈的透明度分别设置为40%和100%.
• Sticking and stitching tongue overlay and tongue underlay Sticking 3㎜ reinforcement. 贴车舌上片与舌下片:贴3㎜补强带.
• In 1969 a ( 51 mm ) bituminous concrete overlay was placed on the concrete deck. 1969年在混凝土板上铺设了51mm厚的沥青混凝土铺装层.
• Various overlay mediums , such as agar , starchgel, methyl cellulose and tragacanth are used. 常用的覆盖培养基有:琼脂 、 淀粉凝胶甲基纤维素和黄蓍胶等.
• ...an overlay of snow on the tops of the iron fences. 铁栅栏上落满的一层雪
• Silver overlay is bonded to the entire surface. 整个表面都镀了一层银。