| 正面 | 5684.quantum 英 ['kwɒntəm]美 ['kwɑntəm]     |
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| 背面 |     释义： 1. 音译“钙”。n. 量子论；额；美国昆腾公司（世界领先的硬盘生产商） 例句： 1. The scale of migration took a quantum leap in the early 1970s.20世纪70年代初，移民的规模骤然扩大。 quantum 量子来自拉丁语quantus,多大，多少，-um,中性格。用于物理名词量子。 quantum (n.)1610s, "one's share or portion," from Latin quantum (plural quanta) "as much as, so much as; how much? how far? how great an extent?" neuter singular of correlative pronominal adjective quantus "as much" (see quantity). Introduced in physics directly from Latin by Max Planck, 1900; reinforced by Einstein, 1905. Quantum theory is from 1912; quantum mechanics, 1922; quantum jump is first recorded 1954; quantum leap, 1963, often figurative." |