| 释义 |
par·al·lax
\ˈparəˌlaks\ noun
(-es)
Etymology: Middle French parallaxe, from Greek parallaxis change, alternation, parallax, from parallassein to change, differ, from para- para- (I) + allassein to change, from allos other, different — more at else
1. : the apparent displacement or the difference in apparent direction of an object as seen from two different points not on a straight line with the object
< our two eyes are as a rule only about 2 1/4 inches apart; yet the small parallax caused by the slightly different angle of vision enables us to see three-dimensional, plastic images — Erwin Raisz >
2.
a. : geocentric parallax
b. : heliocentric parallax
c. : stellar parallax
d. : horizontal parallax |