In this case it’s unnecessary or redundant use of words, but it doesn’t mislead or imply a different meaning (at least one I’m aware of).
There are some incorrect terms floating around the Internet that I have to admit get to me. Two that come to mind are torque in lb/ft instead of lb-ft, and also Amps per hour. The problem is so bad we are starting to occassionally see them on manufacturers’ Web sites.
Technically it’s a serious problem because units don’t work in equations as they must, hence confusing and misleading.
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