etalon
/ˈetəlɒn/noun
- Physics a device consisting of two reflecting plates, for producing interfering light beams【物理】标准具。
词源
early 20th cent.: from French étalon, literally 'standard of measurement'.
| 单词 | etalon |
| 释义 | etalon/ˈetəlɒn/noun
词源 early 20th cent.: from French étalon, literally 'standard of measurement'. |
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