| 单词 | perigee |
| 释义 | perigee —perigeal, perigean, adj. /per"i jee'/, n. Astron. the point in the orbit of a heavenly body, esp. the moon, or of an artificial satellite at which it is nearest to the earth. See diag. under apogee. [1585-95; < F perigée < NL perigeum, perigaeum < Gk perígeion (semeîon limit), neut. of perígeios near, of the earth, equiv. to peri- PERI- + -geios, adj. deriv. of gaîa, gê the earth] |
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