The flood and ebbtides alternates with each other.
涨潮和落潮交替更迭。
《新英汉大辞典》
2
This is caused by the tidal diffusion asymmetry in which the vertical turbulence diffusion in the ebbtides is weaker than the one in the flood tides.
动力分析表明这是由潮扩散的不对称性造成的，即落潮期间垂向湍流扩散比涨潮期间弱。
3
And Mr Rush's grandfather-perhaps the most influential of all, for the flavour of this man of the sea runs throughout the book as certainly as the ebb and flood of the tides.