That digital electro hydraulic control system possesses characteristics of quick and precision in governing , modifing speed regulator on line , realizing automatic turbine control and valve manage . are stated 说明了数字电液控制系统具有调节速度快、精度高、可在线修改速度变动率、可实现汽轮机自启停控制和阀门管理特点。
We can discover the m1 and m2 velocity of our country paces back and forth for a long time in the low level with the international comparison then , we analyzed the reason which affected the monetary velocity of our country and carry on the positive research and carry on the causality test 从国际比较可以发现我国m1 、 m2流通速度长期在低水平上徘徊。然后本文重点运用计量经济学中分析时间序列数据的协整理论,对影响中国货币流通速度变动的原因进行实证研究并进行因果关系检验。
At first , the article analyzed the change trend of the monetary velocity of our country since reform and opening - up . the monetary velocity of our country has demonstrated the regular time sequence characteristic that decreases progressively for a long time since the reform and opening - up , have consistency with the general downward trend of the monetary velocity in the whole world 本文首先对改革开放以来我国货币流通速度的变动趋势进行了分析,发现改革开放以来,我国货币流通速度变动长期表现出有规律递减的时序特征,与世界范围内货币流通速度普遍下降的趋势具有一致性。