pound-mass

短语

词形变化

pounds-mass 复数 pounds-mass

别名

lbm pound

释义与例句

n.
  1. 1.

    A unit of mass equal to the weight, on earth (subject to standard gravity), of a mass of one avoirdupois pound, equal to about 453.592 grams. Symbol lbm or lbₘ.

词源

From pound + mass, to differentiate from the unit of weight.

来源：wiktionary