rarefaction英英释义_rarefaction释义_盘文网

首页英语词典rarefactionrarefaction英英释义

rarefaction

[,rɛrə'fækʃən]

英英释义实用场景例句

n. [声] 稀疏；（气体）稀薄

英英释意

1. a decrease in the density of something;: "a sound wave causes periodic rarefactions in its medium"