词汇	time varying spectrum
释义	time varying spectrum 时变频谱
随便看	calling-in point calling-in-point calling-in-point, CIP calling in silver dollars calling interface calling interface method calling interval calling into question calling in variable calling it a day calling it a night calling jack calling J-Horner calling key Calling L calling line calling line identification calling line identification equipment calling line identification facility calling line identification presentation Calling Line Identification Presentation CLIP Calling Line Identification Presentation LT calling line identification provision calling line identification request indi calling line identification restriction