n. 反(向)

射,后向

射
backscattering coefficient 反向
射系数
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noncommissioned officer,
noncommitment,
noncommittal,
non-committal,
noncommitted,
noncommodity,
noncommunicable,
noncommunicant,
noncommunist,
noncommutability,
相似单词
backrush,
backsaw,
backsawing,
backscatter,
back-scatter,
backscattering,
backscour,
backscratcher,
back-scratcher,
backscratching,