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有效阻力     
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  effective resistance
     The data shows that R2Hz-4Hz-R5Hz-7Hz is the sensitive index of frequency dependence of respiratory effective resistance and appears to be a new test for detecting early small airway diseases.
     结果表明R_(2 z-4 z)—R_(5 z-7 z)是有效阻力频率依赖性的敏感指标,亦可作为早期检出小气道病变的新方法。
短句来源
     Mean Values of the respiratory effective resistance at 3Hz increase markedly with degrees of seriousness of bronchitis and emphysema ( P<0.01) while mean values at 5Hz and 7Hz are not significantly different for them ( P>0.05).
     结果3Hz有效阻力是随着慢支及肺气肿病情发展逐渐增大,并呈规律性变化(P<0.01)。 而测量5Hz、7Hz时有效阻力无差异。
短句来源
     Measures respiratory effective resistance at 2 to 7Hz with the forced oscillation technique in normal nonsmokers, asymptomatic smokers and patients with chronic obstructive pulmonary diseases.
     采用强迫振荡法,检测正常不吸烟者、无症状吸烟者和慢性阻塞性肺病患者的2Hz~7Hz频率的呼吸系统有效阻力
短句来源
     MEASUREMENT OF TOTAL RESPIRATORY DYNAMIC COMPLIANCE AND EFFECTIVE RESISTANCE OF RABBITS BY COMPOSITIVE WAVE FORCED OSCILATION TECHNIQUE
     叠加波强迫振荡法测量家兔呼吸系统动态顺应性与有效阻力
短句来源
     Measurement of Frequency Dependency of Respiratory Effective Resistance by the Forced Oscillation Technique and its Clinical Application
     强迫振荡法呼吸系统有效阻力频率依赖性测定及临床应用
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  effective drag
     Experimental Investigation of Effective Drag Coefficient for Particies
     粒子有效阻力系数的实验研究
短句来源
     On the basis of one-dimensional stationary shock theory and perfect "effective gas" model, the effective drag coefficients are determinated experimentally by pressures of relaxation zone.
     基于一维静止激波理论和理想“等效气体”模型,实验确定了粒子的有效阻力系数。
短句来源
  “有效阻力”译为未确定词的双语例句
     We obtained a mathematical relationship between effective resistant coefficient Cf and Re of liquid in the channels by minimum double multiplication,and we also study changes of macrocosmic pressure in channels with the different filtration quantity.
     采用最小二乘法拟合得到对中空纤维微滤膜组件处理酱油时有效阻力系数Cf与通道中流体雷诺数Re之间的数学关系式,并且对不同过滤量时膜通道中宏观压力的变化进行了研究.
短句来源
     These data show the respiratory effactive resistance at low frequency as 3Hz can indicate the degrees of seriousness of chronic obstructive pulmonary diseases.
     认为3Hz低频率情况下有效阻力能够反映慢阻肺发展过程不同阶段的病变程度。
短句来源
     The difference of the respiratory system effectiv mesistance between the normal group and the resistance-increased group, aeasured by cither F- Z 2 device or time constant technique ( TCT), is rlso very significant in statistics ( p<0.0005 ).
     Re与时间常数技术(TCT)所测得的呼吸系统有效阻力值(R_t),正常组与增高组差异均有极其显著性意义(P值均<0.0005)。
短句来源
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  effective resistance
As the temperature is lowered, the measured effective resistance decreases for lel ? L1, 2 and increases in a certain temperature region in which lel ~ L1, 2.
      
Effect of virulence genes complementary to the effective resistance genes in sorghum on fitness of the greenbug, Schizaphis gram
      
A new method was proposed to directly measure the effective resistance and distinguish the porous frequency in the regenerator of the microminiature thermoacoustic refrigerator.
      
The key element to effective resistance training is supervision by a qualified professional and the proper prescription of the program variables.
      
in order to find the genuine reason leading to effective resistance response of tree to insects attacking.
      
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  useful resistance
The level of resistance is similar to that in rye cultivar, South Australian, but higher than that in the wheat line (AUS 10894), hitherto reported to have useful resistance to the Australian pathotype.
      
Systematic screening of germplasm collections at international research centres and other national research programmes have identified useful resistance sources that have been used successfully to breed resistant or tolerant cultivars.
      
The results suggest the existence of potentially useful resistance mechanisms against the vector.
      
tauschii, accession RL5271 may be a useful resistance source for use in a bread wheat breeding program.
      
Electro showed some useful resistance to root rot caused by R.
      
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  effective drag
The free-stream nonuniformity generated by the source leads to effective drag reduction.
      
Drag reduction tests showed that by adding 10% (mol) of C12, the effective drag reduction range expanded to 4-120?°C, compared with 80-130?°C with only the C22 surfactant.
      
The lower and upper effective drag reduction temperature limits, viscoelasticity, and stress-induced precipitation temperature increased with alkyl chain length.
      
From the results, it is found that the surfactant addition causes effective drag reduction in a pipe flow when the hydrate fraction becomes high, while effective drag reduction disappears in the cases of low hydrate fraction.
      
Based on sensitivity studies with the flux-averaging scheme, a simple formula for the effective drag coefficient above the Arctic MIZ is derived.
      
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Measures respiratory effective resistance at 2 to 7Hz with the forced oscillation technique in normal nonsmokers, asymptomatic smokers and patients with chronic obstructive pulmonary diseases. The data shows that R2Hz-4Hz-R5Hz-7Hz is the sensitive index of frequency dependence of respiratory effective resistance and appears to be a new test for detecting early small airway diseases. This study also analyses the relationship between frequency dependence of Rth and parameters of the forced expiratory vital capacity...

Measures respiratory effective resistance at 2 to 7Hz with the forced oscillation technique in normal nonsmokers, asymptomatic smokers and patients with chronic obstructive pulmonary diseases. The data shows that R2Hz-4Hz-R5Hz-7Hz is the sensitive index of frequency dependence of respiratory effective resistance and appears to be a new test for detecting early small airway diseases. This study also analyses the relationship between frequency dependence of Rth and parameters of the forced expiratory vital capacity curve and of the maximal expiratory flow volume curve.

采用强迫振荡法,检测正常不吸烟者、无症状吸烟者和慢性阻塞性肺病患者的2Hz~7Hz频率的呼吸系统有效阻力。结果表明R_(2 z-4 z)—R_(5 z-7 z)是有效阻力频率依赖性的敏感指标,亦可作为早期检出小气道病变的新方法。本文还分析其与用力呼气肺活量曲线及最大呼气流量—容积曲线有关指标的关系。

Respiratory effective resistance and compliance are measureed by the forced oscillation technique in 75 patients with chronic obstructive pulmonary diseases. Mean Values of the respiratory effective resistance at 3Hz increase markedly with degrees of seriousness of bronchitis and emphysema ( P<0.01) while mean values at 5Hz and 7Hz are not significantly different for them ( P>0.05). These data show the respiratory effactive resistance at low frequency as 3Hz can indicate the degrees of seriousness of chronic...

Respiratory effective resistance and compliance are measureed by the forced oscillation technique in 75 patients with chronic obstructive pulmonary diseases. Mean Values of the respiratory effective resistance at 3Hz increase markedly with degrees of seriousness of bronchitis and emphysema ( P<0.01) while mean values at 5Hz and 7Hz are not significantly different for them ( P>0.05). These data show the respiratory effactive resistance at low frequency as 3Hz can indicate the degrees of seriousness of chronic obstructive pulmonary diseases.

用强迫振荡法测定75例慢阻肺患者的呼吸系统有效阻力和顺应性。结果3Hz有效阻力是随着慢支及肺气肿病情发展逐渐增大,并呈规律性变化(P<0.01)。而测量5Hz、7Hz时有效阻力无差异。认为3Hz低频率情况下有效阻力能够反映慢阻肺发展过程不同阶段的病变程度。

The pressures in the relaxation zone behind a shock front for gas-particle flow were measured in the vertical shock tube with a system of injecting and collecting particles.On the basis of one-dimensional stationary shock theory and perfect "effective gas" model, the effective drag coefficients are determinated experimentally by pressures of relaxation zone.The silicagel particles were used in experiments. Their uniformity is very good, and the average particle diameters were 44 μm. and 40 μm. The obtained correlations...

The pressures in the relaxation zone behind a shock front for gas-particle flow were measured in the vertical shock tube with a system of injecting and collecting particles.On the basis of one-dimensional stationary shock theory and perfect "effective gas" model, the effective drag coefficients are determinated experimentally by pressures of relaxation zone.The silicagel particles were used in experiments. Their uniformity is very good, and the average particle diameters were 44 μm. and 40 μm. The obtained correlations of drag coefficient and Reynolds number in the gas-particle flow by experiments agree well with Rudinger's results Cd = 6000/Re1.7. The correlation is independent of the particle loading ratios within the range of experiments.

在具有粒子注入和回收系统的垂直激波管中,测量了气固两相流动激波前沿后松驰区的压力。基于一维静止激波理论和理想“等效气体”模型,实验确定了粒子的有效阻力系数。实验采用了两种均一性较好的球形硅胶粒子,平均粒径分别为40和44微米。实验确定的阻力系数与雷诺数的关系和Rudinger的结果C_D=6000/R_e~(1·7)关系式相当吻合。在实验范围内,阻力系数与粒子负荷率无关。

 
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