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单词 machometer
释义

machometern.

Brit. /maˈkɒmᵻtə/, /mɑːˈkɒmᵻtə/, U.S. /ˌmɑˈkɑmədər/
Origin: Formed within English, by compounding. Etymons: Mach n., -ometer comb. form.
Etymology: < Mach n. + -ometer comb. form. Compare earlier Machmeter n.
Aeronautics.
= Machmeter n.
ΘΚΠ
society > travel > air or space travel > a means of conveyance through the air > aeroplane > parts of aircraft > controls and instruments > [noun] > meters for types of motion > meter indicating air-speed
clock1906
velometer1914
Machmeter1947
machometer1950
1950 Britannica Bk. of Year 739/2 Machometer, an instrument which expresses speeds, especially those in the supersonic range, in terms of their relation to the speed of sound.
1979 T. Wolfe Right Stuff iii. 58 Yeager had his eyes pinned on the machometer.
This is a new entry (OED Third Edition, March 2000; most recently modified version published online March 2022).
<
n.1950
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