It looks like it's that flickering circular light there, which is slowly traveling across your screen, moving from left to right.

它看起来就好像一个摇曳的圆形光点，正缓缓从左向右穿过你的电视屏幕。

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Based on symmetry of the circular light spot of the laser, a two dimensional numerical simulation of temperature fields of laser molten pool has been developed.

利用激光圆形光斑对称性的特点，建立了激光表面快速熔凝条件下温度场的二维数值模型。

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In the case of little circular light source and rectangular slit, the simulation results of different myopic diopters are obtained by geometrical optical theory and Fourier optics respectively.

在假定照明光源是均匀分布的小圆形光源和狭缝为一矩形的条件下，分别利用几何光学和傅立叶光学给出不同屈光度下光强分布情况。

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New this year is a three-storey circular light installation entitled Rising Moon, made from 7, 000 plastic bottles and other recyclable materials floating on a pool of water in Victoria Park.

BBC: Hong Kong��s enchanting homage to the moon

However, in this case, the three lenses have color detail around them which makes them look anything but sinister, and the circular base section might look a little large, but in fact it's light in the hand -- and actually helps it sit quite comfortably atop a helmet.

ENGADGET

Vaguely diverted by the break in routine, that evening he walked on the brick-paved front driveway instead, looping around the circular lawn and through a carport in which a misplaced glass chandelier cast a friendly yellow light.

NEWYORKER: In Other Rooms, Other Wonders