| 单词 | laser heterodyne spectroscopy |
| 释义 | laser heterodyne spectroscopy [`lā·zǝr ¦hed·ǝ·rǝ´dīn spek`träs·kǝ·pē] SPECTROSCOPY A high-resolution spectroscopic technique, used in astronomical and atmospheric observations, in which the signal to be measured is mixed with a laser signal in a solid-state diode, producing a difference-frequency signal in the radio-frequency range. |
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