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focusing screen
对焦屏
可把摄影镜头所会聚来的被摄景物成像光线,在其磨砂面处结成清晰影像,以供进行取景构图与精确调焦的磨砂玻璃屏幕。又称磨砂玻璃调焦屏、聚焦屏。
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swing amplification
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swirl burner
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swirl solid-liquid separating equipment
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