stroke speed การใช้

• In swimming, after the competition, the race will likely be reviewed using video analysis to look at stroke speed in the pool.
• "Snake " and " Viper " were built at the Haigh Foundry in 1838 with cylinders and the driving wheels geared 2 : 3 in order to keep the cylinder stroke speed low while allowing high track speed, in line with Brunel's specifications.