A system of high frequency electronic circuit was used in the teaching and experiment concerning the high frequency emission.

一种高频电子线路的实验系统，用于高频发射的教学与实验。

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Electromagnetic absorbing materials with high frequency and high loss are required to absorb the noise energy, aiming at restraining the electromagnetic leak induced by high-frequency emission noise.

为了抑制高频发射噪声引起的电磁波泄漏，就需要开发频率高损耗大的电磁波吸收材料，有效地吸收噪声能量。

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These include enhanced emission of infrared (IR) radiation from the earthquake epicentre, as well as anomalies in low-frequency electric and magnetic

包括从地震震中传出来的经过加强的红外辐射，以及不正常的低频电磁现场数据。

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It can use its High Frequency Instrument to look for the infrared emission from dust that is warmed by stars associated with far-off galaxies.

BBC: Science & Environment