sector mark的用法和樣例：
例句
- A device for converting energy form one form to another. In relation to computers, the term is applied to a read/write head, to detector of sector marks in a magnetic disc system, and to electronic/sonic pulse converters of delay line memory.
把能量從一種形式轉換成另一種形式的裝置。在與計算機有關(guān)時(shí)，這個(gè)術(shù)語(yǔ)用在磁盤(pán)系統中的讀／寫(xiě)磁頭、扇面標記的檢測上，以及用在延遲線(xiàn)存儲器的電子或聲波脈沖變換器上。
