kōng​xīn​zhuān

hollow brick

空心砖 空心磚 kōng​xīn​zhuān
hollow brick
A lightweight brick with one or more holes in the center, used in construction for thermal insulation and soundproofing.

Frequency

Movie subtitles
0.090 per million appears in 0% of films
Written text
0.457 per million

Cross-References

Classifier

Sources