水すい平へい方ほう向こうすいへいほうこうMeanings1nounhorizontal directioncomputingTechnical term used in computing, engineering, and physics to refer to the horizontal axis or orientation.画が像ぞうを水すい平へい方ほう向こうに反はん転てんさせる。Flip the image horizontally.このグラフの水すい平へい方ほう