例句與造句

1. He established Dobson ozone spectrophotometer stations in India.
2. He calibrated an instrument called the Dobson Ozone Spectrophotometer which provided data on atmospheric ozone.
3. During 1960s her work shifted increasingly to the study of atmospheric ozone including the measurement of total ozone with the Dobson ozone spectrophotometer.
4. It's difficult to find dobson ozone spectrophotometer in a sentence. 用dobson ozone spectrophotometer造句挺難的