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| 单词 | nuclear magnetic resonance |
| 释义 | nuclear magnetic resonance in British Englishnoun a technique for determining the magnetic moments of nuclei by subjecting a substance to high-frequency radiation and a large magnetic field. The technique is used as a method of determining structure Abbreviation: NMR. See also electron spin resonancenuclear magnetic resonance in American English a phenomenon exhibited by various atomic nuclei when placed in a strong magnetic field, in which they absorb energy from specific, high-frequency radio waves: the measurements of the magnetic moments of these nuclei, esp. of hydrogen, are used in medical diagnostics, chemical research, etc. to study the nature and structure of matter |
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