The symptoms are usually temporary and clear distance vision may return after resting the eyes.

但这种症状只是暂时的，在经过充分休息之后，眼镜就可以重新看到远处清晰的事物了。

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There are a great many of tunnels in high-grade highway, it is necessary to adopt the small clear distance tunnel.

小净距隧道的主要特点是比分离式隧道占地少，比连拱式隧道造价低，造型美观；但施工难度大，技术含量高。

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Determining where a distant object lies in space takes a bit of work, because the universe lacks clear distance markers.

由于宇宙中缺少明显的距离标识，在空间中确定一个遥远的物体的位置需要大量的工作。

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The rich red design is a digital printing of a photograph of a worn rug, clear from a distance but blurry up close.

WSJ: Collecting Art With Fran?ois Pinault

It's still not clear at what distance the exchange was intercepted -- while the passive ISO 14443 tag is spec'd with a read distance of only 2-milimeters you'll find claims of reads at several meters.

ENGADGET: Dutch RFID e-passport cracked -- US next?

Stephen Kelly needed to clear off the line after Taylor failed to gain distance on his punch, while Tuncay headed straight at the keeper when a yard either side would have given his team an equaliser.

BBC: Birmingham 3-0 Middlesbrough