水すい平へい距きょ離り

noun

horizontal distance

Technical term used in surveying, geography, and engineering to refer to the distance measured along a level plane, as opposed to slope distance.

• 測そく量りょうでは、水すい平へい距きょ離りと斜しゃ距きょ離りを区く別べつする。

  In surveying, horizontal distance and slope distance are distinguished.

• 地ち図ず上じょうの水すい平へい距きょ離りは実じっ際さいの道みちのりより短みじかい。

  The horizontal distance on the map is shorter than the actual path length.