您要查找的是不是：
- single density diskette 单密度软盘
- single-side single density floppy diskette 面单密度软磁盘
- Double density disc: A floppy disc which can store twice as much information as its single density counter part. 双倍密度磁碟:能贮存双倍数据的软磁碟。
- The storage density of a disk medium; storing four times the amount of information per disk as single density. 磁盘介质的存储密度，在这种密度下磁盘的信息存储量是单密度盘的四倍。
- An approximate equivalence method is used to simplify the recovery equation with mixture densities into single density. 采用近似等价的方法，将含有混合密度的恢复方程简化为单一密度求解。
- SS/SD [Single-Sided Single Density] 单面／单密度[指磁片]
- Model on Single Density Solids Segregation in CFB Boiler CFB锅炉内等密度颗粒的分层模型研究
- The letter was written on a single sheet of paper. 这封信只用一张纸写成。
- One single, second class, to winchester, please. 买一张去温撤斯特单程二等票。
- He got over the stream with a single leap. 他一跃就跳过了小溪。
- double density diskette 倍密度软磁盘
- The bridge crosses the river in a single span. 河上那座桥是单跨桥。
- Do you want a single or a return ticket? 你要单程票还是往返票?
- Is the material single width or double width? 这幅料子是单幅的还是双幅的？
- I have had to work for every single penny I earned. 我挣的每一便士都是辛苦工作得来的。
- The huntsman fired a single shot at the lion and settled its hash. 猎人朝那只狮子开了一枪，把它打死了。
- Five twenties and ten single, please. 请给我5张20元的和10张1元的。
- She wore a single orchid on her evening dress. 她在晚礼服上缀着一朵兰花。
- And third, if zipped, it almost fits on single 1,44 Mb diskette. 第三，所有的程式压缩后只有1.;44MB;一片磁片的大小而已喔！
- Up to yesterday, I thought he was single. 直到昨天，我一直以为他是独身。
