Principle: wan n-gun rawng ai, pilot hole hpe hpaw na matu electromagnetic n-gun, ntsa gawk a n-gun gaw lawan ladan hkrat sum mat ai, hpaw da ai shara ni grup yin na ntsa na npu na npu na n-gun hpe hpaw shabawn ai, hpaw ai shara ni hpe sharawt na matu hka n-gun hpe jat wa shangun ai, valve hpe hpaw ai; Power, pilot hole hpe pat kau na matu, hka lim ai hka htung hku nna shang wa ai n-gun gaw, n-gun kaba ai n-gun shai hkat ai lam a grup yin na valve daw ni hta lai nna, shang wa ai n-gun, hka lim ai lam hpe n-gun jaw na matu, hka lim ai lam hpe n-gun jaw na matu, hka lim ai lam hpe n-gun jaw na matu, valve hpe pat kau ai.
