某种“烟雾报警器”的简化原理图如图所示。电源电压为 , 为定值电阻,激光�射器�出的激光强度恒定不变;当烟雾浓度增大时,光敏电阻上的光照强度 Template


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tomski某种“烟雾报警器”的简化原理图如图所示。电源电压为 , 为定值电阻,激光�射器�出的激光强度恒定不变;当烟雾浓度增大时,光敏电阻上的光照强度 coloring