The pure cyst's X performance is the circular or the ellipse compact shadow, the edge light entire, the density is even;

单纯囊肿的X线表现为圆形或椭圆形致密阴影，边缘光整，密度均匀；

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She was at the edge of darkness or the edge of light, depending upon which way you were going.

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It is adhered to the edge of the light guide, which faces the LED light sources.

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Detectors at the carpet's edge convert the light into electrical signals which are then analysed by a computer.

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