It mainly consists of sensor arrays and pattern recognition systems. 主要由感測器陣列和模式識別系統組成。
Although some other gas sensor array systems have been tested at the prototype stage, few have been used in real time measurement situations. 儘管一些其他氣體感測器陣列系統在原型階段經過了測試，但在實時測量情況下卻很少被使用。
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