The length of the strap shall be measured when the product is placed on a horizontal surface with no load.

带子长度的测试方法是将带子放在水平表面上，没有任何负重。

youdao

A horizontal surface raised above the level of the adjacent area, as a stage for public speaking or a landing alongside railroad tracks.

论坛，月台：高于邻近区域高度的水平的表面，如作为公众演讲的舞台和沿铁路线的平台。

youdao

If you do not end your move on a horizontal surface, you fall prone, taking falling damage as appropriate for your distance above the ground.

如果你的移动最终不能停止在水平表面上，你将摔下去并且承受正常强况下由于跌落而造成的伤害。

youdao

Unfortunately, tragedy can strike with as simple an act as brushing one's elbow across the table, and that's all it took for me to knock my smartphone right onto a hard surface -- facedown in a perfectly horizontal position (the worst imaginable angle).

ENGADGET

The Microsoft Surface, a horizontal touch-screen computer with neither keyboard nor mouse, will go on sale in November.

ECONOMIST: Computer interfaces

The Lipsky home in Parker County, Texas sits atop an area in the vicinity of horizontal fracking lines from two gas wells about a mile below the surface.

FORBES: Promised Land's Fracking Fictions: OPEC Goes Hollywood With Crocudrama