The old man bent down and scanned the boy's reposeful face and listened to his placid breathing.

老人弯下身子，审视着孩子平静的脸，听着他平静的呼吸。

Its running is reposeful. The cutting is accurate, the production efficiency is high. It is assorted equipment of foam foaming machine.

本机采用变频调速控制技术，运行平稳、生产效率高，是自动发泡的必备配套设备。

Therefore, it is of great importance to study the coupled dynamic characteristics of a mill main drive system for keeping efficient and reposeful production.

因此，研究轧机主传动系统的动力学耦合特性，对于抑制轧机振动、保证高效平稳地生产具有重要的理论意义和实用价值。

The result of the unit root test shows that the venture capital time series and the patent time series are both non-reposeful time series, they are integrated of order 1;

单位根检验结果显示创业投资时间序列和专利时间序列都是非平稳的，是一阶单整序列；