Astronomers could gain only a biased idea of the universe when they were limited to the narrow wavelength band of visible rays.

由于只能在可见光的狭窄波段内观测，天文学家关于宇宙的概念显然只能是片面的。

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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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Related cloaks have been made to work with infrared rays and visible light.

并已制造了可在红外光和可见光波段工作的隐身器件。

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Ellis, said his group decided to recommend to patients the removal of all leads with frayed wires visible on X-rays, even if they work.

WSJ: Agonizing Choices for Heart Patients

X-rays, ultraviolet light and visible light particularly once it has weakened enough to stop emitting gamma rays.

ECONOMIST: Astronomy

Its logo, an eye surrounded by dancing rays, is visible on T-shirts, bags, backpacks and scores of products targeted for young people up and down Jalan Malioboro, Jogjakarta's main business street.

CNN: Big Little Problems