The blow opened a huge horizontal gash into the back of his head-picture a slit you could post an envelope through.
这一击在他的头部后侧撕开了一道巨大的水平豁口，足以塞进一个封信。
2
PROFILE: The true picture of a surface in relation to a horizontal line; a contour of a designated surface of a cup, cone, or roller.
型面轮廓：与水平线相比表面的实际轮廓线；实际设计的外圈，内圈或滚子的轮廓线。
3
But there is Mosaic impact in the enlarged picture because this method can't adequately attenuate the vertical frequency off the Base Band in the horizontal and vertical direction.