Astronomers think the object shown in this Chandra X-ray Observatory image (in box) may be an elusive intermediate-mass black hole.

天文学家们认为在上面那张钱德拉X射线天文台的图片的匣子里的物体可能是一个难以捉摸的中等质量黑洞。

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The box is lined with lead to shield the x-ray detector from stray radiation.

盒子本身还连接了铅，以便阻挡杂散射线被探测器接收。

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Several minutes later my assistant put the X-ray up on the view box in my office.I took one look and had to suppress an expletive.

几分钟后助手把X片放到办公室阅片框上，我看了一眼，马上掩饰住自己惊讶。

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Viduka had a chance to make the game safe in the 72nd minute but he shot over the bar in the box from Ray Parlour's cross from the right.

BBC: SPORT | Football | Premiership | West Brom 1-2 Middlesbrough

The Friends: Complete Series Blu-ray box set is presented in highly collectible new packaging consisting of a lenticular box cover, a hard-cover book that holds 21 Blu-ray discs, plus a 32-page episode guide.

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