1)high specific speed高比转速
1.Analysis of flow in a high specific speed mixed flow compressor;高比转速斜流叶轮流场分析
2.The investigation on high specific speed pump system in eastern route of the South-to-North water diversion project of China;南水北调工程高比转速水泵装置的有关问题研究
3.Design and mapping of impeller blade of centrifugal water pump of high specific speed;高比转速离心泵叶轮的设计与绘型
英文短句/例句
1.Study on characteristic of flow for the diversion components of the Francis turbine with high specific speed高比转速混流式水轮机引水部件水流特性研究
2.Numerical Simulation of Interior Flow for High Specific Speed Mixed-flow Pump and Its Characteristics Prediction;高比转速混流泵内部流场数值模拟与性能预测
3.Numerical Simulation of Interior Flow for High Specific Speed Mixed-flow Pump Designed by Constant Circulation flow Pattern等环量流型高比转速混流泵内部流场数值模拟
4.Numerical simulation for adjustable high specific speed mixed-flow pump可调叶片高比转速混流泵内部流场数值模拟
5.Study on the Design、Numerical Simulation and Experimental Research of High Specific Speed Mixed Flow Pump Basing on the Distribution of Circulation基于环量分布的高比转速混流泵设计、数值模拟及试验研究
6.Influence of silt particle diameter and volume fraction on centrifugal pumps with high specific speed泥沙颗粒直径及体积分数对高比转速离心泵的影响
7.The direct convertor is fact, but with little accuracy.直接比较式转换器速度高，但精度低。
8.Impact of impeller type on performance of high-speed centrifugal pumps with ultra-low specific-speed叶轮型式对超低比转速高速离心泵性能的影响
9.Orthogonal design of complex impeller of centrifugal pump with super-low-specific-speed超低比转速高速离心泵复合式叶轮的正交设计
10.number of revolutions to speed螺旋桨转速与航速比转数与船速比
11.Comparator Applicable for High Speed High Resolution ADC一种应用于高速高精度模数转换器的比较器
12.Alpine skiing consists of the downhill,super G,giant slalom,slalom and combined.高山滑雪包括高山速降,超级大回转比赛,小回转比赛,大回转比赛和高山滑雪混合赛。
13.6 Bit Super Speed Flash ADC Design;6比特超高速全并行模数转换集成电路设计
14.Design and Implementation of High-speed Forwarding Engine Based on Terabit Router;基于T比特路由器高速转发引擎的设计与实现
15.Geometric formation method of short blades on compound impeller of high-speed centrifugal pump with super-low specific speed超低比转速高速离心泵复合叶轮短叶片的几何造型方法
16.Although such a rotor is of comparatively small diameter, its peripheral speed may be as high as 13000m/min;虽然这样的转子直径比较小，但其圆周速度可高达13000米/分
17.The results indicated that the fuel consumption was slightly reduced and smoke level was improved apparently and the power was increased.柴油机的比油耗有所下降，转速有所提高，排气烟度得到大幅度改善。
18.High-speed analog-to-digital conversion chips can thus exploit hundreds of megahertz of RF spectrum simultaneously.高速类比数位转换晶片因此能同时运用数亿赫兹的RF频谱。
相关短句/例句
higher specific speed pump高比转速泵
3)high specific speed mixed-flow pump高比转速混流泵
1.In order to open out the rule of the interior flow for high specific speed mixed-flow pump,the numerical simulation of it was calculated by commercial software fluent.为揭示高比转速混流泵的内部流动规律,应用商用软件F luent对其进行数值模拟。
4)centrifugal pump with high specific speed高比转速离心泵
5)Specific speed比转速
1.Selection of specific speed of pump turbine for Wulongshan pump storage power station;乌龙山抽水蓄能电站水泵水轮机比转速选择
2.Influences of the leakage rate of low specific speed Francis runner on phenomenon of the lifting hydroelectric generator set;低比转速转轮泄漏量对水电机组抬机的影响
3.A new method for statistical analysis of specific speed n_s of turbine;统计分析水轮机比转速n_s的一种新方法
6)speed ratio转速比
1.The results of an experimental investigation some factors are given such as speed ratio, axial spacing between the rotors and so on influence on performance of a contra rotating axial flow fan stage.实验证明，当第２级与第１级转子的转速比为１５，轴向间隙距离为０３０～０２５倍第１级转子叶片弦长时，第１级转子的失速特性得到改善，风机的失速余度得到改进，风机的失速流量及压力增加。
延伸阅读
比转速比转速specific speed b一Zht{0门SLJ比转速(speeifiC speed)是反映水力机械技术经济的综合指标。当水头(扬程)、功率或流量都已确定时，比转速直接反映水力机械的转速水平。 水轮机比转速和水泵水轮机的水轮机工况比转速计算方法一样，指几何相似的水轮机(水泵水轮机)在lm水头下发出Ikw功率时所具有的转速，用、表示，单位取m·kw。ns一n、八孺HS’4(l)或。，一3 .1 3n.，杯氨两(2)式中，甲为水力效率;n为转速，:/min;P。:为输出功率，kw;H为工作水头，m;Ql!为单位流量，m，/s;n，，为单位转速，:/min。 蓄能泵比转速和水泵水轮机的泵工况比转速一般都用流量比转速表示.指蓄能泵(水泵水轮机)扬程为lm、流量为lm，/S时的转速，用，.表示，单位取m·m3/s。、‘产、龟J少，d月注Zr、了‘、或 丫奋)nq=”-万i万nq一。1，丫面五式中，Q，·为流量，m3/s;月。为扬程，m。 水轮机、水泵水轮机和蓄能泵在不同的工况点运行，具有不同的比转速值。在工程设计中.对水轮机一般取额定工况点(额定转速nr;额定水头H「;额定功率尸r)的比转速值，对蓄能泵和水泵水轮机一般取最大流量点(通常为额定转速n，;最小扬程Hp。:;最大流量QP.。二)的比转速作为代表，用来比较比转速的高低。 由于在相同水头(扬程)、功率(流量)条件下，所选用的水轮机(或水泵水轮机、蓄能泵)比转速高，说明其额定转速高、机组尺寸小，对降低机组造价有利，口直径大于进口直径.同时，比转速愈低，其导叶相对高度愈小，进水流道愈狭窄，转轮叶片数愈多。轴流式水轮机、水泵水轮机、蓄能泵也有类似规律.所以提高比转速是近代水力机械发展的主要趋势之 对反击式水轮机、水泵水轮机、蓄能泵，比转速提商也惫味着转轮(叶轮)内水流速度加大，空化条件恶化。因此，它们的比转速受空化的限制，提高十分缓慢.对冲击式水轮机，当射流直径和转轮直径已确定时，其比转速与喷嘴数的平方根成正比.因此，提高冲击式水轮机比转速的途径主要是增加喷嘴数.目前，国际上喷嘴数最多的冲击式水轮机具有6个喷嘴。但喷嘴数的增加也受到结构、强度等限制，特别是水头超过8。。m时。 水力机械比转速的高低与其型式、适用水头(扬程)范围有较为明显的对应关系。
