首先，我们研究了超声分子束的纵向平动温度和中心速度与束源温度的关系；

First, we study the relation between the translational temperature of the molecular beam and the temperature of the beam source chamber;

youdao

首先，我们研究了超声分子束的纵向平动温度和中心速度与束源温度的关系；

First, we study the relation between the translational temperature of the molecular beam and the temperature of the beam source chamber;

youdao