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简述低浓度瓦斯(CH4)传感器输出特性曲线?

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±0.20%CH4  ±0.10%CH4  ±0.01%CH4  ±0.05%CH4  
≥1.0%CH4;≥1.0%CH44;<1.0%CH4  ≥1.5%CH4;≥1.5%CH44;<1.0%CH4  ≥1.0%CH4;≥1.5%CH44;<1.0%CH4  ≥1.5%CH4;≥1.0%CH44;<1.0%CH4  
±0.20%CH4  ±0.10%CH4  真值的±10%CH4  真值的±20%CH4  
≥1.0%CH4;≥1.0%CH4;  ≥1.5%CH4;≥1.5%CH4;  ≥1.0%CH4;≥1.5%CH4;  ≥1.5%CH4;≥1.0%CH4;  
2.00%~3.00%CH4  3.00%~5.00%CH4  1.00%~2.00%CH4  2.00%~4.00%CH4  
≥0.5%CH4  ≥0.75%CH4  ≥1.5%CH4  
0.04%CH4,0.4%CH4  0.1%CH4,0.4%CH4  0.02%CH4,0.4%CH4  0.1%CH4,0.5%CH4  
0.1%CH4,0.1%CH4  0.1%CH4,0.4%CH4  0.01%CH4,0.1%CH4  0.01%CH4,0.01%CH4  
≥0.5%CH4,≥0.5%CH4,<0.5%CH4  ≥1.5%CH4,≥1.5%CH4,<1.5%CH4  ≥1.0%CH4,≥1.0%CH4,<1.0%CH4  

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