machine-hour

短语

n. 机器工时

词形变化

machine-hours 复数 machine-hours

释义与例句

n.
  1. 1.

    The amount of work that can be done by one machine in one hour; a billable hour for one machine. (Said of, for example, a piece of heavy equipment or a machine tool.)

    With the right carbide tooling and toolpath programming, you're not looking at too many machine-hours for a job like this. If you're going to putz around with cheaper tooling and guesstimated feedrates, then you'll pay for those in more machine-hours.

词汇关系

名词

上位词 2

unit unit of measurement

词源

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

来源：wiktionary