ultra-clean
adjective (also ultraclean) uk/ˌʌl.trəˈkliːn/ us/ˌʌl.trəˈkliːn/
超净
extremely clean
Ultra-clean children, some believe, are more likely to suffer from allergies.
The samples are analysed in ultraclean laboratories. 样本在超净实验室中进行分析。
- More examples
- The oysters didn’t taste super fresh and the restaurant didn't seem ultra-clean.
- Doctors have to work in an ultra-clean environment in order to prevent contamination of the specimens.
- Automakers are working on developing ultra-clean electric cars that run on hydrogen fuel cells.
- The Blue Flag programme guarantees that the beach you visit is ultra-clean and environmentally friendly.