| 释义 |
librations 英laɪb'reɪʃənz美laɪb'reɪʃənz BNC¹¹⁴⁰²⁴⁺⁵
基本英英例句
天平动¹⁰⁰原型libration的复数
名词 libration:
astronomy a real or apparent slow oscillation of a moon or satellite Working table with stable in-and-out, non- librations, speed can be adjusted unlimited.
工作台进出平稳、无振动，进出速度无级调节。08ce |