其他显微镜产生的三维图像在样品和显微镜镜头间的纵向分辨率较差，赛贝尔说。

All other microscopes producing 3-d images have poor resolution in the up-down direction, the direction between the sample and the microscope's lens, Seibel said.

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仪器的工作原理是在显微镜镜头下旋转细胞，每旋转一周拍摄数百张照片，然后结合这些数字照片形成一个三维图像。

The machine works by rotating the cell under the microscope lens and taking hundreds of pictures per rotation, and then digitally combining them to form a single 3-d image.

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购买的成本是非常，非常低的，而实际上，显微镜上的物镜，我们用来观看原子图像的非常强大的镜头， 也都从CD播放机拆下来的。

So this is very, very low-cost to buy, and actually, the objective lens in the microscope, the very powerful lens we use to image the atoms, is also from a CD player.

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