英和和英

vibrations per second

cycles per second

when every second counts

Two seconds.

every second

one thousand periods per second

Fifteen seconds

per minute

A period of two seconds.

When every second counts

the number of seconds counted in a knock out

Sixty seconds make a minute.

a duration of time lasting one second

one million periods per second

3 seconds flat

frequency per minute

6 times per minute

one trillion periods per second

one trillionth of a second

minute calculation

minute calculation

a basic unit of time, called second

an angle of 10 arcseconds

for a split second

a second

a ten‐second delay

a second time

a second time

in a fraction of a second

within 10 seconds