Moire stone surface horizontal turbulence, similar to the shell texture.

龟纹石表面横竖乱纹，类似龟壳上的纹理。

youdao

There is no simple one-to-one correspondence between optical depth and surface horizontal visibility.

光学厚度与地面水平能见度不呈简单的对应关系。

youdao

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

ECONOMIST: Computer interfaces

This is a special type of Earth model which traces its idealised "horizontal" surface - the plane on which, at any point, the pull of gravity is perpendicular to it.

BBC: Europe's Goce satellite probes Earth's gravity

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