研究表明，启动过程中，密封的特性参数在开启临界气膜厚度附近快速变化；
The results indicated that the sealing parameters changed remarkably near the opening critical film thickness in the start up process.
根据开启临界气膜厚度的假设，提出了用于分析干式气体密封开启性能的判据——开启临界转速。
With the hypothesis of critical gas film thickness, a criterion for expressing the opening behavior of DGS, namely the critical opening rotational speed (CORS), was proposed.
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