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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This functionality, which was a nonstandard extension in XSLT 1.x, opens a world of opportunity for XSLT template authors.

这种功能在XSLT 1 . x属于非标准扩展，为XSLT模板创造者打开了新的机会之窗。

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Note: PHP 5.x no longer enables the mysql extension by default.

注：PHP 5 . x不再默认启用MySQL扩展。

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Next year, IBM plans to announce additional general purpose blades for the IBM zEnterprise BladeCenter Extension including select IBM System x-based blades running Linux.

ENGADGET: IBM's zEnterprise architecture makes mainframes cool again, also efficient (video)