| 1. | Pump efficiency and conversion methods for efficiency
泵及泵装置效率表达与换算 |
| 2. | Determination of efficiency for gear units
齿轮装置效率测定方法 |
| 3. | Transmission gear efficiency of shafting
轴系传动装置效率 |
| 4. | En 26184 - 4 explosion protection systems . part 4 : determination of efficacy of explosion suppression systems
防爆装置.第4部分:灭火装置效率测定 |
| 5. | Flow circulation and deviation could be eliminated by enlarging the back guide blade outlet incidence , and pump assembly efficiency could be increased by 1 . 6 ~ 2 . 4 percentage points
增大后导叶出口安放角，可以消除环量和偏流，提高泵装置效率1 . 6 ~ 2 . 4个百分点。 |
| 6. | Abstract : the influence of the main factors on device efficiency of pulsedliquicd jet pump with gas - liquid piston is analysed , the theoretical equation and its time - averaged solution of pulsed liquid jet pump device efficiency are derived
文摘:对影响气液活塞式脉冲液体射流泵装置效率的主要因素进行分析，导出了脉冲液体射流泵装置效率理论方程及其理论方程的时均解。 |
| 7. | Results indicate that flow deviation in discharge passage is formed by co - action of pump outflow circulation and secondary flows in outflow curved pipe , hydraulic loss of discharge passage increases and pump assembly efficiency decreases because of flow deviation
结果表明：水泵出流环量和出水弯管二次流共同作用形成了出水流道偏流，偏流使出水流道水力损失增大，泵装置效率下降。 |
| 8. | It is pointed out that passage hydraulic loss is related to the flow circulation , the influence of flow deviation on passage hydraulic loss and pump assembly efficiency is analyzed , the forming mechanism of flow deviation is investigated , and the method of eliminating flow deviation is put forward
指出流道水力损失与水流环量有关，分析偏流对流道水力损失和泵装置效率的影响，研究偏流形成机理，提出消除偏流的方法。 |
