| 单词 | uncertainty |
| 释义 | uncertainty n. (pl. -ies) 1. the fact or condition of being uncertain. 2. an uncertain matter or circumstance. Phrases and idioms uncertainty principle (in full Heisenberg uncertainty principle after W. Heisenberg, Ger. physicist d. 1976) Physics the principle that the momentum and position of a particle cannot both be precisely determined at the same time. |
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