passenger mile

短语

词形变化

passenger miles 复数

别名

passenger-mile

释义与例句

n.
  1. 1.

    A basic unit used by transport companies for calculating profit levels etc. It is calculated by multiplying total distance travelled in a given period by the number of passengers.

词源

Compound of passenger + mile, although, as with any such unit of measure (e.g., person-months, newton metres), the mathematical relationship of multiplication is simultaneously involved; see ton-mile for more information.

来源：wiktionary