Disappearance of normal esophageal contour.
正常食管壁轮廓消失。
The contour currents colliding with the overlapped low density normal seawater can create internal waves of large scale at the interface of the thermohaline.
在等深流与上覆低密度水体之间的界面上具备产生大规模界面内波的条件；
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。
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。
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