湿度计

máo fà shī dù jì

毛发湿度计

hair hygrograph

zhè yī xìng zhì bèi yòng yú rén men suǒ shú zhī de shī dù jì zhōng

这一性质被用于人们所熟知的湿度计中。

This property is used in the well known hygrograph.