parts-per notation

set of pseudo units to describe small values of miscellaneous dimensionless quantities

en-US/ˈpɑɹts - ˈpɝ noʊˈteɪʃən/
en-GB/ˈpɑːts - pɜːɹ nəʊˈteɪʃən/

ক্যাটাগরি:

unit fraction