The extension of astronomy from visible light to radio waves to x-rays and gamma rays never failed to lead to the discovery of unusual objects such as radio galaxies, quasars, and pulsars.

从可见光扩展到无线电波，再到 X 射线和伽马射线，天文学总是会发现不寻常的物体，如射电星系、类星体和脉冲星。

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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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We hope and expect that, like other developmental disorders such as Fragile X syndrome, the use of mouse models will lead directly to clinical trials that can benefit patients.

我们希望并期待其他发育障碍，如x染色体脆弱症。 老鼠试验能够帮助进行对有益于病人的临床试验。

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The NMC1000 is available in 40-pin, 5mm X 5mm quad flat no-lead (QFN) and 2.5mm x 2.5mm chip scale packages, requiring the industry's smallest external BOM.

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He invented and patented a series of combination locks with lead balls to block x-rays, in conjunction with special nylon wheels to prevent them from observed.

FORBES: A Former KGB Covert Entry Expert Speaks

Will the experience of the FS-X debate lead to a more orderly and disciplined U.S. interagency process on future projects of a similar nature, in particular the systematic involvement of Commerce and the U.S. Trade Representative in negotiations over defense sales with the Japanese?

CENTERFORSECURITYPOLICY: The US-Japan FS-X Fighter Agreement: Assessing The Stakes