- Friedrich Wilhelm (ˈfriːdrɪç ˈvɪlhɛlm). 1784–1846, German astronomer and mathematician. He made the first authenticated measurement of a star's distance (1841) and systematized a series of mathematical functions used in physics
| 单词 | bessel |
| 释义 | WordReference Random House Unabridged Dictionary of American English © 2024 Bes•sel (bes′əl),USA pronunciation n. Collins Concise English Dictionary © HarperCollins Publishers:: Bessel /ˈbɛsəl/ n
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