snatch:
http://tv.sportedu.ru/video/tyazhela...tekhnike-ryvka
A few things to point out:
check out the shin angle of each lifter as the bar reaches knees
check out how tall, long, and vertical each lifter gets on the extension; no back bending, or arching or hip throwing
check out the minimal degree of ankle extension: enough only to adjust the feet location for the squat. not a prime mover
check out the location of the last position the bar contacts before it free flys