rarefaction

释义

n.变稀薄，稀薄

实用场景例句

This is called a rarefaction and is represented by widely spaced dots.

这个区域称为稀疏区,并用疏散的小点表示.

辞典例句

The classical elementary waves in Riemann solutions include rarefaction wave, shock wave and contact discontinuity.

黎曼解涉及的经典基本波包括疏散波 、 激波和接触间断.

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英英释义

Noun

1. a decrease in the density of something;

"a sound wave causes periodic rarefactions in its medium"