These include plants that have sensors printed onto their leaves to show when they're short of water and a plant that can detect harmful chemicals in groundwater.

其中包括叶子上载有传感器的植物，能显示出它们何时缺水，还包括一种可以检测到地下水中有害化学物质的植物。

youdao

For example, visible and invisible chemicals spewed into the air or water from a plant nearby pose a danger to the people nearby and other animals and plants.

例如，有形和无形的化学原料从附近的工厂排放到空气或水中，这对于附近的人们和其他的生物构成危害。

youdao

One of the rules the Republicans are complaining about, regarding mercury, arsenic and other toxic chemicals released by power plants, has been in the works for over 20 years.

共和党人控拆的其中一项规定是针对发电厂排放汞、砷及其它有毒物质的规定，这项规定用了20年才最终出台。

youdao

Chemicals,plants and dead skin particles from animals can cause an allergic reaction.

VOA: special.2010.12.21

He says when the GTL plants come on line and chemicals come back to life in a quickening economy, Sasol will show that it can make profits all over the world.

FORBES: On The Cover/Top Stories

And for the first time, plants using the worst chemicals--substances such as mercury, labeled persistent bioaccumulative toxins--would be able to use the short form, so long as they use less than 500 pounds of that chemical and release none into the environment.

FORBES: Toxic Neighbors?

Ripping up opium plants with tractors and threatening to kill crops by aerial spraying with lethal chemicals has pushed Afghan farmers into the grip of the militants, she argues.

ECONOMIST: The Taliban and drugs