单词 | Z |
释义 | Z 1. Astron. zenith distance. 2. zone. Symbol. 1. the 26th in order or in a series, or, when I is omitted, the 25th. 2. (sometimes l.c.) the medieval Roman numeral for 2000. Cf. Roman numerals. 3. Chem. , Physics. atomic number. 4. Elect. impedance. Z0 Symbol, Physics. See Z-zero particle. |
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