n. 扇形, 部门, 部分, 函数尺, 象限仪, 段, 区段

vt. 把...分成扇形

[计] 扇面; 扇区; 段; 区段

n. a plane figure bounded by two radii and the included arc of a circle

n. a social group that forms part of the society or the economy

n. a particular aspect of life or activity

n. the minimum track length that can be assigned to store information; unless otherwise specified a sector of data consists of 512 bytes