流速

The whole analysis was completed on a C〓 column in 18min at a flow rate of 0.5 ml/min, with the mobile phase of methanol-water (93: 7, v: v) containing 75 mmol/L TEOLA and 200 mmol/L HAc, or with the mobile phase of ethanol-water (90: 10, v: v) containing 25 mmol/L TEOLA and 200mmol/L HAc pumped at 0.25ml/min. Compared with the methanol system, the ethanol system was a better candidate for the separation of thulium porphyrin complexes in view of selectivity.

在C〓分析柱（5μm，2.5×150mm）上，流动相为：甲醇：水＝93：7（v/v内含75mmol/L三乙醇胺和200mmol/LHAc），流速为0.5ml/min和流动相为：乙醇：水＝90：10（v/v，内含25mmol/L三乙醇胺和200mmol/L HAc），流速为0.25ml/min，均能使六个铥卟啉配合物在18min内得到有效的分离，相比之下，乙醇体系对铥卟啉配合物更具有分离选择性。

The results indicate the velocity and temperature in different flow channels of a planar fuel assembly are relatively uniform, and the velocity and temperature in the same flow channel are also uniform.

数值计算结果表明：燃料组件不同流道的流速分布和温度分布均较均匀，单一流道的流速分布和温度分布也较均匀。

At a mean follow-up of 15 months (range, 10-19 months), 19 (65.51%) of 29 patients had excellent results, and nine patients (31.03%) had acceptable results. HolCTU failed to maintain good flow in the latter group, necessitating internal urethrotomy/endoscopic dilation once or twice for stabilization (maximal flow rate 15 mL/s or greater). One patient (3.44%) had recurrent obstruction despite repeated internal urethrotomy, which finally required formal transpubic urethroplasty. All of the patients were continent, with no change in potency status.

经过15个月的后续追踪(范围在1 0-19个月)，29位患者中有19 位(65.51%)患者有极佳的效果，另有9位(31.03%)患者有可以接受的效果；不过，后面几组无法以尿道造口术维持好的流动，为了稳定流速，需要一至两次内部的尿道造口术/内视镜扩张术(最大流速为5 mL/s 或更大)；有1位(3.44%)患者虽然重复接受内部尿道造口术，但是一再发生阻塞，患者最后需要经正规的耻骨尿道成形术，全部患者可在不影响性功能的情况下控制排尿。

A Three- dimensional-acoustic Doppler velocimeter is used to measure the velocity components of the flow field in all three coordinate directions for different discharge and measurement site.

利用三维超声波多普勒流速仪量测不同位置、不同流量下的流场，分析了测点位置和水深与植被高度比对时均流速、紊动强度及雷诺应力垂线分布的影响。

The Laser-Doppler velometer is used to measure velocities.

在实验中采用先进的激光多普勒流速仪测量流速。

Compared with other available instruments the velometer has the advantages of highly automatic operation, rapid response, flexibility and relatively much lower cost. 2 Sequential flow is the most important function of a step gating system. Till now the studies about it have given little information.

针对以往关于阶梯浇注系统研究中，对各层内浇口分层注入功能研究不够，缺乏定量测量结果的不足，本文工作中采用微计算机化的光电非浸入式流速测量仪，首次实现了对几种典型的阶梯式浇注系统各层内浇口流速在浇注过程中变化情况的动态测量。

Both the linear term and nonlinear term of hydraulic gradient representing the energy dissipation due to inertia force and viscous force respectively are increasing with the increase of specific discharge. At the same time, the portion of nonlinear term in hydraulic gradient increases continuously.

此时，水力梯度中以黏性力和惯性力消耗能量为主导的渗透流速线性项和非线性项均逐渐增大，同时非线性项占水力梯度的相对比重随流速的增大而不断增大。

Flow disciplinarian of different PH indicator polymer solution and newtonianliquid in annulus line had been studied, and found speed distributing, vortex,streamline of annulus line, analytic flow field distributing in annulus and eccentricsituation and compared the results with prevenient schloar, some results different fromprevenient results are get, shch as the relation of average velocity and maxiumvelocity is not less with the viscosity exponent under the annular line, the fluid speedaffect the relation.

应用 PIV 分别研究了不同浓度的聚合物溶液以及牛顿流体在垂直环空管道中的流动规律，得到了环空管道中流体的速度分布情况、涡量情况、流线情况，分析了同心和偏心情况下环空管道内的流场分布规律，并与前人的计算结果进行了比较，得出了一些与以前不同的结论：同心情况下平均流速与最大流速的关系，并不是完全与粘性指数 n 值有关系，还与管道内流动的流动速度有关系，当速度较小时，两者的差别就小，速度大时，不符合这种规律。

By the experiment studying, the relationship of ξ1, and v1 is determined. In a word, the water-power calculation of pipe can be done by taking corresponding ξ1, according to the design velocity v1 and .

通过实验研究，确定了ξ1与流速v1及A1/A2之间的关系，在设计中，只要根据设计流速v1与A1/A2就可以采用相应的ξ1进行管道的水力计算。

Figure 1: Relationship between the width of the buccal channel and resistance to flow of saliva: left: wide channel, rapid flow, poor retention; right: narrow channel, slow flow, good retention After Basker,R.M.

图1：颊侧间隙宽度与抵抗唾液流动的关系：左：间隙宽，流速快，固位差；右：间隙窄，流速慢，固位好。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。