| 单词 | Planck mass |
| 释义 | Planck mass [`pläŋk ´mas] PHYSICS The mass √(hc /2πG ), where h is Planck's constant, c is the speed of light, and G is the gravitational constant; equivalently, the mass of a particle whose reduced Compton wavelength equals the Planck length; it is equal to 21.77 micrograms or 1.221 × 1019 GeV/c2. |
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