| 单词 | x-ray fluorescent emission spectrometer |
| 释义 | x-ray fluorescent emission spectrometer [`eks´rā flu̇`res·ǝnt i¦mish·ǝn spek`träm·ǝd·ǝr] SPECTROSCOPY An x-ray crystal spectrometer used to measure wavelengths of x-ray fluorescence; in order to concentrate beams of low intensity, it has bent reflecting or transmitting crystals arranged so that the theoretical curvature required can be varied with the diffraction angle of a spectrum line. |
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