aseptic

护士确保所有器械在手术开始前都经过了无菌处理。

The nurse ensured all instruments were ___aseptic before the surgery began.

这种果汁采用无菌包装技术，无需冷藏即可保鲜。

The juice is packaged using ___aseptic technology that keeps it fresh without refrigeration.

博物馆那些毫无生气、白得发冷的展厅，感觉更像实验室而非艺术场所。

The museum's ___aseptic white galleries felt more like a laboratory than a place for art.