Correct

扇区

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Strokes

Definition

disk sector (computing)

Example

As a Noun

sector

1
Shàn
扇区
shì
pán
磁盘
shàng
de
zuì
xiǎo
物理
cúnchǔ
存储
dānwèi
单位
  

A sector is the smallest physical storage unit on a disc.