English Dictionary

Mach

IPA（発音記号）

/mɑːk/

名詞

不可算名詞

(physics) a ratio of the speed (of an object, etc.) to the speed of sound in the fluid or other medium through which the object travels. Usually used to describe supersonic speeds; the Mach number.

日本語の意味

音速に対する移動速度の割合、すなわちマッハ数。物体の速度と流体中の音速との比率を示す物理用語。

The research paper reported that the experimental aircraft achieved Mach 1.5 under controlled conditions.

研究論文は、実験機が管理された条件下で音速の1.5倍の速度に達したと報告した。

意味（1）

(physics) a ratio of the speed (of an object, etc.) to the speed of sound in the fluid or other medium through which the object travels. Usually used to describe supersonic speeds; the Mach number.

The jet traveled at Mach 3.