[CentOS] how to create label fo swap space

I just add a partition /dev/sdb3 and use "mkswap
/dev/sdb3" to make it swap space.  How can I label the
/dev/sdb3 like "SWAP-sdb3"?

what I want is put on /etc/fstab as entry like:

LABEL=SWAP-sdb2         swap                    swap  
 defaults        0 0

LABEL=SWAP-sdb3         swap                    swap  
 defaults        0 0

Thanks


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