The effect of the seawater layer is mainly the absorption of emitted electromagnetic energy and consequently weakens the observed signal , but it is plausive to have shielded the external noises and purified the measuring environment .
海水层的影响主要体现在对发射电磁能量的吸收，导致异常信号能量较弱，但同时也屏蔽了外界的环境噪声，净化了测量环境。
plausive