互开 meaning in Chinese

interhancgeability

The design of the hollow billiards of century ck security locks is plane and heterotype , it can enhance the billiard very poor precision and key sealed , it can reduce the rate of mutual opening , improving mechanical properties of security
世纪西科防盗锁锁芯的上弹子设计成平面异形空心弹子，提高弹子的极差精密度和密钥量，减少锁具间的互开率，提高机械防盗性能。