air line

名词 n.
中文释义

英文释义

名词 n.
  1. A pipe or tube supplying air or compressed air.
    — Air-lines from the reservoirs to supply points are 2-in. bore heavy gauge polythene pipes which are carried underground, embedded in sand.
  2. A railroad following a very flat, straight route between two endpoints in order to minimize travel times, choosing the shortest, most direct route practical even if longer route that was more advantageous was available.

词形变化

air lines plural
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