Haitan Strait is a south-north and long restrictedchannel strait, tidal wave in the strait belongs to progressive wave.
海坛海峡为南北狭长型海峡,海峡内潮波属于前进波。
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The idea was that no client would be able to impersonate another because each channel had a unique low-privileged MCAUSER which restricted inbound messages to specific queues.