wet and dry bulb hygrometer

例句：

1. 1. Weneed to measure the temperature in both wet and dry bulbs before we can start our experiment.
   在开始我们的实验之前，我们需要测量湿球和干球的温度。
2. 2.The engineer used a wet and dry bulb hygrometer to monitor the humidity levels in the laboratory.
   工程师使用湿球和干球湿度计来监测实验室的湿度水平。
3. 3.The farmer used a wet and dry bulb hygrometer to determine the optimal planting time for his crops.
   农民使用湿球和干球湿度计来确定他农作物的最佳种植时间。