Double - exposed technique was used to compare the transportation incidence between two groups.

采用双曝光技术比较两种器械预备弯曲根管后的根管偏移发生率.

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By using double - exposed holographic interferometry, the distribution ofsound pressure in the acoustic levitation field is analyzed.

利用二次曝光全息干涉术实现了对单轴式声悬浮声压场的研究.

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If you don't wind on after taking a picture, your negative will be double - exposed.

如果你照完一张相片后不往前进一张, 底片就是会曝光.

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You have to wind on after taking a picture, or your negative will be double - exposed.

照完一张照片后必须过卷, 否则底片会重复曝光.

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