【化】 旋压成型

rotary-drilling machine with coupling (hitch) for mining

rotary haymaker (rotary-drum rake and tedder) haymaking (haying)

rotary slide-valve vibrator

rotary-drilling machine with gearing for mining

rotary-piston pump oscillating-piston pump

rotary TRANSMISSION with mechanical energy accumulators

rotary-drilling machine mining, quarrying

speed gearing rotary-drilling machine with speed gearing for mining