英和和英

frequency per minute

per minute

6 times per minute

cycles per second

increase the number of rotations per minute

vibrations per second

thirty respirations per minute

slowing down

one million periods per second

one thousand periods per second

a tachometer

a phonograph record that goes around on a turntable 78 times per minute

1/60 of a minute

Twenty minutes.

minute calculation

minute calculation

A period of two seconds.

the velocity of sound

a minute amount

lessen the momentum or velocity of

1,000,000,000 periods per second

every second

a ten‐second delay

Fifteen seconds

a quick tempo

forward speed

lessen the speed

to decrease the speed―reduce the speed―lessen the velocity

one trillionth of a second

a flow of five gallons a second