n. strange and unconventional behavior
n. (geometry) a ratio describing the shape of a conic section; the ratio of the distance between the foci to the length of the major axis
n. a circularity that has a different center or deviates from a circular path
n. 古怪, 古怪行为, 怪癖
[化] 偏心度; 偏心距; 偏心率