headway

名词 n.
中文释义

英文释义

名词 n.
  1. A movement ahead or forward. countable,uncountable
  2. Forward motion, or its rate. countable,uncountable
  3. The interval of time or distance between the fronts of two vehicles (e.g. buses) moving in succession in the same direction, especially along the same pre-determined route. countable
    — The whole of the main lines to be electrified were being equipped with four-aspect colour-light signals, automatically operated, where appropriate, and spaced to give a 5min headway throughout.
  4. Progress toward a goal. figuratively,uncountable
  5. The clearance beneath an object, such as an arch, ceiling or bridge; headroom. countable
    — So as not to impede navigation the two principal spans of the bridge were designed to provide a clear headway of 157 ft. above high water for a distance of 500 ft.; [...].
  6. A crossheading. countable,uncountable

词形变化

headways plural

词汇关系

衍生词
make headway
相关词
seaway

词源

Partly from Middle English hauedwei, from Old English hēafodweġ (“head-road, main-road”); partly as a shortening of ahead-way, the source of the nautical sense. By surface analysis, head + way.
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