dual-filter hydrophotometer

例句：

1. 1.The dual-filter hydrophotometer was used to measure the concentration of pollutants in water samples.
   使用双滤波测光仪测量水样中的污染物浓度。
2. 2. The new dual-filter hydrophotometer has improved accuracy and reduced measurement time.
   新型双滤波测光仪提高了准确性并缩短了测量时间。
3. 3.The dual-filter hydrophotometer is widely used in environmental monitoring and industrial testing.
   双滤波测光仪在环境监测和工业测试中广泛应用。