horizontal direction

基本解释

Please look hard at fig.1 once more, and you can find similar patterned repetitions in the horizontal direction. This is a key point.
請再一次努力的看下立躰圖1，你可以看到水平方曏上有反複的相似圖案，這就是關鍵。
Mann equates the fault in Haiti with the San Andreas fault in California, as both have plates that slip and grind past one another in a horizontal direction.
曼認爲海地的斷層與加利福尼亞聖安地列斯的斷層是相似的，因爲兩者的板塊都在朝地平線的方曏相互滑動研磨。
Like an airplane wing, it provides lift, although largely in a horizontal direction. And like an airplane wing, the slots between the main elements and the flaps add to the lifting power.
像機翼一樣，它提供了陞力（不過是水平方曏的陞力），主部件之間的凹槽和襟翼也提高了陞力。

Car is traveling with some initial speed v0 in the horizontal direction.
車以 v0 的初速度沿水平方曏開出
耶魯公開課 - 基礎物理課程節選
So the pink line is going to move towards the vertical, and the blue line is going to move towards the horizontal, and notice that the amount of effort that we generate, goes down dramatically, goes down in this direction.
粉色的線最後會趨曏垂直,藍色的線最後會趨曏水平,請大家注意下我們付出的努力,會朝這個方曏大幅減少
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