不电离的
OCT has many advantages over other existing medical modalities,including use of non ionizing radiation,display of contrast between soft tissues and disclosure of functional information. 光学成像法与现有的辐射成像方法相比具有辐射是非电离的；可以区分软组织；
Scientific colloquium on medical supervision of workers exposed to ionizing and non ionizing radiations 接受电离和非电离辐射照射的工人的医学监督科学讨论会
This non sequitur invalidates his argument. 他不根据前提推理因而论证无效。
Patience is a sine qua non for a good teacher. 做个优秀教师必不可少的条件是要有耐心。
The diplomat was declared persona non grata. 这位外交家被宣布为不受欢迎的使节。
He is declared personal non grata and forced to leave the country. 他被宣布为不受欢迎的人而被迫离开该国。
