person-year

短语

n. 人工作年；人年(统计学中工作量计算单位, 表示一个人一年的完全的工作量)

词形变化

person-years 复数 person-years

别名

PY

释义与例句

n.
  1. 1.

    One person's working time for a year, or the equivalent, used as a measure of how much work or labor is required or consumed to perform some task.

    人年

    Meronyms: person-hour, man-hour < person-day, man-day < person-month, man-month

    Altogether it took hundreds of person-years to build the bridge and dam, and such a payroll is not cheap.

词源

Compound of person + year, although, as with any such unit of measure (e.g., ton-miles, newton metres), the mathematical relationship of multiplication is simultaneously involved: X persons working during Y years = X × Y = Z person-years.

来源：wiktionary