Tesla measured these electrostatic emissions with a particular partially evacuated tube which he could orient as desired and watch the wave patterns change shape.
特斯拉用特制的排空管来测量这些静电排放物，他可以随心所欲地调节和观察波形的变化。
2
The paper presents the structure characteristics and performances of the accelerating tube for J-2.5 MV electrostatic accelerator.
介绍了为2.5 MV静电加速器研制的加速管的结构特点和性能测试结果。
3
The conditioning of the tube on J-2.5 MV electrostatic accelerator shows that its performances are perfect.