| 词汇 | quantum |
| 词根词缀 | 词源： 1619, "one's share or portion," from L. quantum "how much," neut. sing. of quantus "how great" (see quantity). Introduced in physics by Max Planck, 1900; reinforced by Einstein, 1905. Quantum theory is from 1912; quantum mechanics, 1922; quantum jump is first recorded 1955; quantum leap, 1970. |
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