The mask layer can adhere to the polymer layer during thermoforming and other secondary processing steps.

在热成型及其它二次加工步骤中，掩模 层可以被附着在聚合物层上。

youdao

Laryngeal mask airway and bougie intubation failures: the combitube as a secondary rescue device for in-hospital emergency airway management.

喉罩和探针插管法失败后：食管-气管导管可以作为医院内紧急气道处理的备选安全设备。

youdao

The invention has high degree of automation and work efficiency, avoids artificial secondary pollution and increases folding quality of the facial mask.

本发明自动化程度高、工作效率高，避免了人工的二次污染，提高了面膜的折叠质量。

youdao

The company concentrated on its mask and physical theatre work in secondary schools, which has led to the development of new masks.

BBC: News