冷冻电子断层扫描(Cryoelectron tomography)聚焦于细胞的成分，使得科学家能够获知整个细胞组织原子水平的细节。

Cryoelectron tomography brought into focus the cell's components, allowing scientists to get atomic-level detail of whole-cell organization.

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红外照相机聚焦的是一根手指(或者相似大小的物体)破坏水平面、散射光线的点。

An infrared camera watches for spots where a finger (or similarly sized object) breaks the plane and scatters the light.

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拍摄肖像(垂直画面)时要聚焦在一个特定区域；拍摄风景(水平画面)要创造一个宽阔的景象以包含更多的元素——这样拍摄通常是最好的选择。

It's often best to shoot portrait (vertical) when focusing on a specific area and landscape (horizontal) to create a wide image incorporating more elements.

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