An overlay showing population can be placed on top of the map.

可以在地图上加一层显示人口的透明膜。

《牛津词典》

What we’re going to do instead is set it on top of the colored slide and set our blending mode to Overlay. Then throw your opacity to around 45%.

我们所要做的应该是将图片放置在幻灯片的顶层，然后将混合模式设为叠加，再将不透明度设为45%左右。

youdao

What we're going to do instead is set it on top of the colored slide and set our blending mode to Overlay. Then throw your opacity to around 45%.

我们所要做的应该是将图片放置在幻灯片的顶层，然后将混合模式设为叠加，再将不透明度设为45%左右。

youdao

Facebook also has plans to roll out a new buddy list feature that'll show up as an overlay on top of Cover Feed with a simple swipe.

ENGADGET

Microsoft has also filed a patent for a set of digital glasses that overlay information on top of the user's view, which it suggested could be used at sports matches and theatres.

BBC: Details of Google's Project Glass revealed in FCC report

You need to overlay the Internet of Everything on top of that trend.

FORBES: Why An Internet Of Everything Event? "It's The World Waking Up"