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Right now, the test involves lying on your back while the arm of a special X-ray device moves over your body to measure the thickness of various bones.

现在，这项检测需要你躺下，同时一个特别的如手臂一样的X光射线装置来回在你身体上移动来检测不同部位骨头的厚度。

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We unfortunately don't have a blood test or an X-ray to confirm it.

很不幸，我们没有血液测试或X光测试来证实这种病。

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The National Osteoporosis Foundation says a test called Dual-energy X-ray absorptiometry,or DXA, is the best test for osteoporosis.

VOA: special.2010.08.31

You'll need to have a skin test for tuberculosis, a chest X-ray and a test for hepatitis B before taking infliximab.

CNN: Ulcerative colitis

The department recently launched a pilot program, for example, to use X-ray machines to test passengers and their luggage for explosives.

CNN: On alert on the rails

The department of justice will now press ahead with plans to test another more sophisticated X-ray scanner.

BBC: Scanners ruled out for NI prison searches after pilot