| 单词 | arcsec |
| 释义 | arcsec (extremely rare) n WORD FAMILY arcsec n the inverse function of the secant; the angle that has a secant equal to a given number Syn|Hyper arc secant, arcsecant, inverse secant circular function, trigonometric function function of an angle expressed as a ratio of the length of the sides of right-angled triangle containing the angle |
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