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flow resistance ratio 流动阻力比
Valves - Test of flow resistance using water as test fluid. 阀门。用水作为试验液体的流动阻力试验。
Experimental investigation of flow resistance and beat transfer characteristics has been carried out on a typical lamilloy model whose ratio of inlet bole, pin fin, and outlet hole is 1: 4: 1. 摘要对进气孔、扰流柱和出气孔个数之比为1:4:1的典型层板冷却结构的流体流阻与换热特性进行了实验研究。
The effects of diamond grain sizes on wear resistance ratio of the sintering diamond compacts are investigated. 研究了金刚石的粒度对烧结体磨耗比的影响；
The old style resistance ratio was 1:3, whereas the new DB and RR resistance ratio is a minimum of 1:15. 以前的电阻比为1：3，但是现在的电阻比的最小值已经达到1：15。
The effect of implantation is similar to that of cyclodialysis; howeer, the shunt proides sufficient flow resistance to eliminate the risk of hypotony. 移植的效果和睫状体分离术很相似；然而，金微管提供了足够的流动抗性来减少张力减退的风险。
Resistance ratio(RR) is calculated based on the baseline data tested with Taihu susceptible strain. 抗性倍数以太湖敏感品系为对照计算获得。
Little flow resistance and corrosiveness of media.It has double flow direction and is widely applied. 液体阻力小,介质冲蚀小,具有双流向适用范围广。
These membranes feature high permeability and thereby low flow resistance during filtering and separation. 这种薄膜在过滤和分离过程中具高渗透性和极低的流量阻挡。
Reasonable design, big flow zone, smoothbore, no heap of dirty, small flow resistance. 设计合理,流通面积大,通径平滑过渡,无脏物堆积现象,流通阻力小。
The truss structure featured by small flow resistance,strong toughness and less pressure loss. 具有流阻小，刚性好，压力损失小的桁架式结构。
Results The resistance ratio of the field-collected strains to DDVP>66.85,and to propoxur,permethrin,cypermethrin and deltamethrin were 1.20,5.66,5.14 and 5.10 respectively. 结果苏州市德国小蠊对敌敌畏的抗性系数大于66.;85;对残杀威、氯菊酯、氯氰菊酯和溴氰菊酯的抗性系数分别是1
The effect of heat transfer and flow resistance on different structure of crossed-rib is investigated by experiment. 通过试验,研究了不同结构的交错肋对换热及流阻特性的影响。
The resistance ratio of the field-collected strains to DDVP>66.85,and to propoxur,permethrin,cypermethrin and deltamethrin were 1.20,5.66,5.14 and 5.10 respectively. 苏州市德国小蠊对敌敌畏的抗性系数大于66.;85;对残杀威、氯菊酯、氯氰菊酯和溴氰菊酯的抗性系数分别是1
The heat transfer and flow resistance performance of corrugated tube heat exchanger were examined by oil, water, and steam. 采用油、水、水蒸气对波纹管换热器的传热和流动阻力性能进行了试验研究。
The paper discusses the solution method of bus-piping circulating water system and introduces one new concept-Virtual Flow Resistance. 详细介绍了母管制循环水系统的数学描述和求解，提出了虚拟流程阻力的概念。
By analysing the flowing resistance of the massecuite, this paper discusses the problem of how to calculate the circulation ratio of a vacuum pan equipped with mulidowntakes. 结晶罐的循环比是否合理,反映了结晶罐结构性能的优劣。
The molecularly imprinted monolithic column is developed in HPLC,due to its simple preparation,high selectivity and low flow resistance. 分子印迹整体柱具有制备简单、特异选择好及传质阻力低等优点,在高效液相色谱中的应用发展迅速。
The characteristic of turbulent heat transfer and flow resistance with multi-longitudinal vortexes in tube is numerically analyzed. 对多纵向涡对管内湍流换热和流阻特性进行了数值分析。
Objective:To assess the Doppler perfusion index(DPI),portal congestive index(PCI)and resistance ratio index(RR)for differential diagnosis of malignant and benign hepatic space occupying lesions. 目的：应用多普勒超声（D－US）测定多普勒血流灌注指数（DPI）、门脉充血指数（PCI）及阻力比（RR）等血流参数，用以评价这些血流参数在肝内良、恶性占位病变中的鉴别诊断和早期诊断价值。