Finally, the new empirical formulas for calculating their criticalpressureratio were derived too.
探讨了篦齿的临界特性，提出了新的能够准确计算两类篦齿临界压比的经验公式。
2
With the criticalpressureratio of a single stage, that of the staging can also be obtained, and thus can supply data for the online calculating and diagnosis of the steam turbine.
在求出单级临界压比的基础上，可以计算出级组的临界压比，为在汽轮机变工况在线计算和故障诊断提供数据。
3
In the study of flow oscillation and discrete frequency noise of impinging jet, it is found that there is a criticalpressureratio for a given nozzle and a nozzle-to-plate distance.