Members of the West Virginia national guard are assembling newly designed masks in hopes of supplementing the supply of N-95 masks.

西弗吉尼亚州国民警卫队员正在组装新设计的口罩，希望能补充N-95口罩的空缺。

The mask design was similar to one created years ago by one of the company's engineers that mapped facial muscles to interpret speech.

这款口罩的设计与多年前该公司一位工程师的一款设计类似。该工程师曾绘制面部肌肉以解释语音。

Stores quickly sold out of face masks designed to protect against the possible harmful effects of volcanic ash, the French press agency AFP reported.

据法新社报道，商店里用来防火山灰危害的口罩很快售罄。

The wearable bioelectronic mask designed by the researchers from Tongji University can detect common respiratory viruses, including influenza and the coronavirus, in the air in droplets or aerosols, and then alert the wearers via their mobile devices.

这款可穿戴生物电子口罩由同济大学的研究人员设计，可以检测空气中飞沫或气溶胶中含有的常见呼吸道病毒，包括流感病毒和冠状病毒，然后通过移动设备提醒佩戴者。