Terms for subject Aviation containing return to zero

English	Chinese
balance character of non-return to zero under starting load	冲击不回零性
non-return to zero	非归零
non-return to zero—change	非归零----- 更改
non-return to zero—level	非归零------- 电平
non-return to zero—mark	非归零------- 标记
return to zero level	归零电平
return to zero mark	归零标志