1.Some new phenomena of two fold re- sonance are revealed. The theory is verified by experiment.
揭示了双重共振的一些新现象,理论得到了实验验证。
2.Alarm indication signal (AIS) should be progressive response, light first and then sonance follows, the time interval should be 15 secs.
告警信号应逐级相应,先光后声,时间间隔为15秒。