罗茨泵极限真空度及其预抽时间预测模型研究 |
| 李玉龙,宋陆昊,刘天涯,宋安然 |
|
Research on prediction models for limiting vacuum degree and its pre-pumping time of Roots pump |
| Yulong LI,Luhao SONG,Tianya LIU,Anran SONG |
| 图1 转子轮廓构造及其坐标系构建 |
| Fig.1 Rotor contour structure and its coordinate system construction |
|