提供了两个典型事例,表明在美国以外世界的另一个地方-中国也存在相同类型的恶劣气候引起的F2层次声波扰动.并发现了在周期为3～5分......

Infrasonic Passive Differential Spectroscopy (IPDS) technology is employed for direct detection of hydrocarbons.Low-freq......