The arm movement can only be executed correctly when the body skims the water surface in a wave-like fashion and the arms stroke and start their recovery at the right moment.
手臂的运动，才能被执行正确的身体掠过水面表面波浪状的时尚和武器中风和开始恢复正好。
2
The system consists of microcomputer and transient wave converter etc For the measurement of working parameters of drilling machine such as impact energy or frequency, stroke and pressure.
The mechanism of chopped wave overvoltage of transformers caused by insulator arc-over chopped wave after lighting stroke terminal tower is analysis emphasize.