bǎo​wēn

insulation

保温 (保溫) bǎo​wēn
insulation adjective
the property, process, or act of heat preservation

The thermal insulation performance of this new building material is excellent.

keep warm verb
to maintain the temperature of something to prevent it from cooling down

This bottle of hot water can stay warm all day long.

Frequency

Movie subtitles
0.450 per million appears in 0% of films
Written text
6.20 per million

Sources

Definitions
CC-CEDICT