| 1. | [ 2 ] the affinity law of impeller trim for the centrifugal oil pump 65y60 is gained when pumping viscous oil
( 2 )得到了输送粘油时65y60型离心油泵的叶轮切割规律。 |
| 2. | Up to now , there is no research on the affinity law of impeller trim for the centrifugal oil pumps
到目前为止，国内外还没有对离心油泵的叶轮切割定律进行过研究。 |
| 3. | [ 5 ] the influence of the number of blades on the affinity law of impeller trim for the centrifugal oil pump is obtained
( 5 )得到了叶片数对离心油泵叶轮切割定律的影响规律性。 |
| 4. | The work is one part of the project , which is supported by scientific research & development fund , gansu university of technology
本文是甘肃工业大学校科研发展基金资助项目《离心油叶轮切割定律的实验研究》的一部分。 |
| 5. | [ 3 ] the greatest error is 50 % between the result given by the affinity law of u . s . a and that calculated by using the trim law issued in this work
( 3 )发现在输送水时美国的叶轮切割定律计算结果与本文相差最大为50 。按美国的切割指数用于离心油泵叶轮切割，误差比较大。 |
| 6. | Based on the findings of the investigation , the following conclusions should be made : [ 1 ] the affinity law of impeller trim for the centrifugal oil pump 65y60 is obtained when handling water from the experiments
通过研究，取得到了以下研究成果： ( 1 )得到了输送水时65y60型离心油泵叶轮切割定律。 |
| 7. | Through incision experiment on the impeller of circulating pump times and times , the relation between the size of incision and the capacity and head of the pump was discussed , the law of performance was summarized after the impeller is incised , the existing formula was revised
摘要经过对混流泵叶轮多次切割试验，探讨了叶轮切割量与泵的流量、扬程之间的关系，总结了混流泵叶轮切割后的性能变化规律，进而对现有公式进行了修正。 |
| 8. | The centrifugal oil pump of type 65y60 , finalized by the former ministry of machinery - building of china is used as a model , which is widely utilized in oilfields and refineries . the affinity law of impeller trim for the pumps at various viscosity and the influence of number of blades on the law have been thoroughly investigated by experiments
本文以油田和炼油厂常用的，机械工业定型产品65y60型离心油泵为研究对象，采用试验的方法，全面研究了不同粘度下离心油泵的叶轮切割定律和叶片数对叶轮切割定律的影响规律。 |
