A fast-scanning system的用法和样例：
- A fast scan does not read the leaf or data level pages of the index.
- This acoustic microscope consists of very concise hardware, which includes a mechanical scanning system and a PC with a super high-speed A/D converting card and a fast pulse generating and signal receiving card.
- Specifies whether to perform a fast scan of the index and output minimal information.
- He's not a fast horse but he's certainly a stayer.
- Bill has a feeling he is on a fast track.
- That new Fiat is a fast little number.