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》

For example, experiments can be placed on the outside of a spacecraft.

例如，实验可以在航天器的外部进行。

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Any string value can be placed in the custom attribute on the asset; however, the value is for searching and view-only purposes in the RAM clients.

任意字符串值都可以加入资产的自定义属性中；但是，这个值只用于在 RAM 客户端中搜索和查看。

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Some spices can even be grown in a house if they are placed in sunny areas next to windows.

VOA: special.2009.05.19

But small pieces should not be placed along the edges of an area as they can dry out more quickly.

VOA: special.2009.07.07

You can find other advice online. For example, we learned that sod should not be placed so that the ends of the pieces are all in a line.

VOA: special.2009.07.07

Calls can be placed to any mobile or landline phone, either in Japan or overseas.

ENGADGET: NTT DoCoMo preps automatic translation from Japanese through Android, leaves no one an island

The solid nanoparticles can be placed in air filtration units or sprayed as a powder.

FORBES: Nanotech On The Front Lines

The unit uses no water or detergents, and can be placed in any room of a home.

CNN: Ioning your way to cleaner clothes