Ranges with Units

When expressing a range of values with units of measure, only use the units after the second value.

Examples:

… increased production from 20 to 30%

… had permeabilities of 70 to 100 md

… drilled the section from 3,478 to 4,752 ft

Note that an N-dash can be used: 70–100 md, but don’t mix the from/to method with the N-dash method.

Bad Example: from 20–30%

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