Objective: to research the characteristics of TCD (Transcranial Doppler) abnormal spectrum contour of normal person group on plateau.
目的：研究高原地区正常人群TCD(经颅多普勒)异常频谱形态的特点。
2
In most societies, the term 'normal' is actually a spectrum.
在大多数社会中，“正常”一词实际上是一个频谱。
3
The cause of fan abnormal vibration is diagnosed by analyzing the spectrum characteristic of fan trouble for cooling tower. The normal running of fan is guaranteed.