A slanted or oblique surface.

他在纸上划了一条斜线。

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A reflective blazed grating is formed by making a toothed blazed grating on the oblique surface of a glass wedge-plate with proper metal coated.

在玻璃楔形平板的倾斜表面上加工锯齿形闪耀光栅，在光栅的表面镀相应的金属反射膜，形成反射式闪耀光栅。

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A first oblique surface (9) and a second oblique surface (10) which form a certain Angle with the horizontal plane are arranged on the upper surface (5) and the lower surface (6) of the wall module.

该墙体模块的上、下安置面(5)和(6)上设置有与水平面成一定角度的第一斜面(9)和第二斜面(10)。

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The severity of the laboratory test was equivalent to an oblique collision with the rocky surface of the Earth - a comet coming in at an angle of less than 25 degrees from the horizon, rather than head on (perpendicular to the Earth's surface).

BBC: Comets could have seeded life on Earth