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
