The experiments are a significant step toward next-generation "atomic clocks" based on optical rather than microwave frequencies.

此实验对下一代“原子钟”的产生是重要的一步，下一代“原子钟”将是基于光频而不再是微波频率。

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Mr.Andrews, the managing director of GAMA Microwave Technology, said it is possible to "tune" the radio-frequencies to provide the best results with any small product.

GAMA微波技术公司执行总监安德鲁斯先生说，使用者可“调节”无线电频率，使加热任何一种小食品都达到最佳效果。

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Microstrip hairpin filter has been widely used in the lower microwave frequencies for its compact structure and easiness of manufacture.

微带发夹型滤波器结构紧凑、易于制造，在微波低频端广为应用。

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One image of the innermost regions of our universe that is "mapped at microwave frequencies" looks like a badly smudged Polaroid.

WSJ: Book Review: Gravity's Engines

It still bathes the Earth in a near-uniform glow at microwave frequencies, and has a temperature profile that is just 2.7 degrees above absolute zero.

BBC: Planck satellite: Maps detail Universe's ancient light

Add a few circuits with a pinch of software and the sensor-only camera can produce up to ten images per second, but the catch is Duke's only works at microwave frequencies.

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