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1.万分检测 关于干湿球湿度计的下述说明中,哪个是错误的? (Ⅰ)湿度越低,干球温度计和湿球温度计的示值差越大;(Ⅱ)除温度示值差外,还需要知道干球温度计的示值;(Ⅲ)如果温度示值差为零,则相对湿度为100％,与干球温度计的温度值无关;(Ⅳ)与气压无关,(Ⅴ)湿球温度计的示值随风速变化。 2.电工学 对应于图 (a)所示交流电压输入,输出波形如图(b)所示,其相应的电路是下列五个电路中的哪一个?
(1) The lower the humidity, the greater the difference between the indication of the dry bulb thermometer and the wet bulb thermometer; (II) In addition to the temperature difference between the indication (Ⅲ) If the indication of temperature difference is zero, the relative humidity is 100%, which is independent of the temperature of the dry-bulb thermometer; (Ⅳ) The value of the ball thermometer changes with the wind speed. 2. Electrotechnical corresponding to the AC voltage input shown in Figure (a), the output waveform shown in Figure (b), the corresponding circuit is which of the following five circuits?