| 1. | According to the results of analysis , the shape of the spiral case and stay vanes were improved to reduce the hydraulic losses
根据解析结果，对涡壳和固定导叶进行了改进以减少水力损失。 |
| 2. | Problems related to the measuring system and test device , test rule , losses calculation method , etc . were illustrated in this paper
介绍了新方法所采用的测试装置及测试设备、试验准则、水力损失计算方法等有关问题。 |
| 3. | The method was applied to measure the hydraulic losses of inlet and outlet conduit of bulb tubular pump system of the pumping station respectively
采用本文的方法对某泵站前置灯泡和后置灯泡贯流泵的进、出水流道分别进行了模型试验，测试了流道水力损失。 |
| 4. | The test results signify that the more accuracy result could be obtained to apply the method and the hydraulic losses of the conduits of bulb tubular pump is relative closely to the bulb location
试验结果表明：采用新方法进行贯流泵进出水流道水力损失的测试，可以较为方便地得到准确的结果；贯流泵装置进、出水流道的水力损失与灯泡布置的位置密切有关。 |
| 5. | 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。 |
| 6. | 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。 |
| 7. | To serve the optimum hydraulic design for a large pumping station , a new method to separate inlet and outlet conduit from tubular pump system was put forward for measuring their hydraulic baa , by the way to design a special measuring system
摘要为了配合某大型泵站贯流泵装置的优化水力设计研究工作，本文提出了设计专用模型试验装置，将贯流泵装置进水流道和出水流道从水泵装置模型中分离出来分别进行模型试验及水力损失测试的方法。 |
| 8. | With the in - built drip irrigation belt and thin wall chip irrigation belt taken as examples , the flow rate distribution and hydraulic losses of drippers along capillary tubes at different inlet pressures were measured under the conditions of horizontal slope and slope gradients of 0 . 5 % and 1 % , then the uniformity of capillary tubes was calculated at different slope gradients and pressures in consideration of the manufacture deviation of drippers
摘要以内镶式滴灌带和薄壁滴灌带为研究对象，测定了平坡、 0 . 5 %坡度和1 %坡度时，不同入口压力下滴头沿毛管的流量分布和水力损失，并结合滴头的制造偏差，计算得出不同坡度和压力条件下滴灌毛管的均匀度。 |
