You can replace a recognition property with a regular expression -- or a numeric range -- to allow for pattern-based recognition, instead of being limited to an exact match.
您可以用正则表达式替代识别属性 —— 或者考虑基于模式的识别，替代精确地匹配。
2
On a lighter note, Opera might have limited brand-name recognition as a browser, but is well regarded in technical circles.
还有一个要注意的问题，Opera作为浏览器品牌可能还不够有名气，但很多技术文章都比较关注它。
3
The performance of target recognition is usually limited when using single sensor.