Terms containing non-return-to-zero level

Subject	English	Chinese
telecom.	modified non-return-to-zero level code	改进的电平非归零码
space	non return to zero level	不归零电平码
space	non return to zero-level	非归零电平
earth.sc.	non-return to zero level	非归零电平
avia.	non-return to zero—level	非归零------- 电平
IT	non-return-to-zero level	不归零电平制
tech.	non-return-to-zero level	电平不归零制
el.	non-return-to-zero level signal	不归零电平信号