To borrow a term from the visual arts, Franzen's writing has an enviable depth of field: it keeps a great deal in focus simultaneously.

借用视觉艺术中的一个术语，弗兰岑的小说有一种令人艳羡的视角深度：它同时关注许多方面。

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But at 5km (3 miles) down, its focus was at half the depth—and the epicentre a mere 10km from the city compared with 30km last time.

但是震源仅仅距地面5千米，是上次的一半，距离震中仅仅10千米，而上次则是30千米。

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Telocentric lenses work with a wide depth of field. with a telocentric lens, you can image objects of different distances from the lens and the objects stay in focus.

具端著丝粒的镜头(注：我猜是类似于针孔镜头吧)具有宽阔之景深，以具端著丝粒的镜头，你能够将由镜头不同距离之目标物成像和保持目标物在焦。

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R & D team, not only focus on a certain height from the barbecue at all times to examine the culture, but also to examine in depth all over the flavor and the BBQ grill;

公司的研发团队，不仅注重从一定的高度去审视古今中外的烧烤文化，而且能够深入各地考察烧烤的风味与烤具；

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R & D team, not only focus on a certain height from the barbecue at all times to examine the culture, but also to examine in depth all over the flavor and the BBQ grill;

公司的研发团队，不仅注重从一定的高度去审视古今中外的烧烤文化，而且能够深入各地考察烧烤的风味与烤具；

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