您要查找的是不是：
- A／N比 A/N ratio
- 比 ratio
- C/N比 carbon to nitrogen ratio
- S/N比 signal to noise ratio
- 性价比 performance price ratio
- 不仅A而且 not merely A but also B
- 与其说A不如说 not so much A as B
- 科比 Bryant
- Ti/N比 Ti/N ratio
- A股 A-share
- 不比 unlike
- 把A误以为 take A for B
- 配比 mixture ratio
- 环比 link relative ratio
- 可比 comparable
- 信噪比 Signal-to-Noise
- a-N曲线 a-N curve
- 比起 compared with
- （a-b）n (a-b)~n
- 比表面积 specific surface
