elastomer

/ih-las-tuh-mer/US // ɪˈlæs tə mər //UK // (ɪˈlæstəmə) //

弹性体,弹性材料,弹性物质,弹性纤维

Definitions

n.名词 noun

1
Chemistry.
- : an elastic substance occurring naturally, as natural rubber, or produced synthetically, as butyl rubber or neoprene.

In the case of the covid detector, freeze-dried components that react with the virus are embedded in a paper mask, surrounded by a ring of silicone elastomer so the sample can’t evaporate or diffuse away from the sensor.
The same rubbery elastomer is sometimes used in shoe soles and car tires.
The bullets come out of the elastomer sleeve for further cleaning and battery replacement.