(past and past participle -laid)with obj.(常作be overlaid with)
1- cover the surface of (a thing) with a coating铺; 覆盖; 涂：
their fingernails were overlaid with silver or gold.
她们的指甲涂着金色或银色的指甲油。
1.1
- lie on top of放在…上面：
a third screen which will overlay the others.
将放在最上面的第三层滤网。
1.2
- figurative (of a quality or feeling) become more prominent than (a previous quality or feeling)〈喻〉（品质, 感情）变得比（先前品质、感情）更显著：
his openness had been overlaid by his new self-confidence.
他新取得的自信变得比他的坦诚更令人注目。
1
- something laid as a covering over something else覆盖物：
a durable, cost-effective floor overlay.
耐用而划算的地板涂料。
1.1
- a transparent sheet placed over artwork or something such as a map, giving additional information or detail（置于图片、地图等上, 载有更多信息或详情的）透明塑料膜。
1.2
- a graphical computer display which can be superimposed on another（可）叠加（于另一图形上的）计算机图形显示, 叠加图形显示。
2
- mass noun Computing the process of transferring a block of program code or other data into internal memory, replacing what is already stored【计算机】覆盖。
2.1
- count noun a block of code or other data transferred in such a way覆盖数据。