查询词典 instantaneous angular velocity

Markstein length increases with the increase of dilution ratio when equivalence ratio is less than 1.4, and the flame stability tends to increase with the increase of dilution ratio. The ratio of unstretched laminar burning velocity with and without diluent is only related to the dilution ratio and is little influenced by the equivalence ratio.

丙烷－空气－稀释气混合气随稀释系数的增加，火焰传播速率和层流燃烧速率降低，在当量比小于1.4时，随稀释系数的增加，马克斯坦长度值增加，火焰前锋面的稳定性趋势增加。

In the related researches of highway service level and travel time estimation, which have been mainly focused on how to spread out the Vehicle Detectors in order to detect the velocity of the vehicles. Spreading the Vehicle Detectors, which is difficult to execute, consists of the following procedures : road digging, VDs spreading, and road reconstruction. Moreover, the as mentioned procedures could damage the backtops. To apply the procedures in downtown area is even more laborious, due to the limited resource and controls from local authorities. As a consequence, the unsufficient density and numbers of VDs could not well serve the information collecting standards.

目前道路服务水准评估、旅行时间预估等相关研究，在行车速率推估上多以路面上布设之车辆侦测器所搜集之资讯为主，但VD之埋设需经路面挖掘、VD布设、重铺柏油等程序，布设不容易且损坏率偏高，亦普遍存在维护困难的问题；尽管已有诸多研究开始利用AVI、资料融合、RFID等技术，增进以VD为交通资讯搜集主要来源之研究成果，但仍多因资讯搜集成本较高，无法进行全面性应用。

The precision of the traditional ultrasonic localization method is limited due to unsufficiently precise estimation of the sound velocity and the time of flight, therefore, a new method, the special fusion method for redundancy ultrasonic information was proposed to solve the precision problem.

针对常规的超声波定位方法存在对决定定位精度的声速与渡越时间估算不准，导致定位精度有限的问题，提出了一种新的超声波绝对定位方法，即冗余超声波信息特殊融合法。

The possibility of using a reaction jet had interested aircraft designers for a long time, but initially the low speeds of early aircraft and the unsuitably of a piston engine for producing the large high velocity airflow necessary for the jet presented

使用反作用喷气的可能性令飞机设计师们向往已久，但在最初存在很多障碍，这是因为早期飞机的速度很低和活塞发动机不适合于产生&喷气式&所必需的大量高速气流。

Walter Abhayaratna, M.D., senior lecturer, Australian National University, said LV untwisting velocity is a sensitive marker of LV function.

据澳大利亚国立大学高级讲师Walter Abhayaratna医师所述，心室解旋速率是用于测量左心室收缩和松弛期间的心脏扭转运动，是反映左心室功能的一项敏感指标。

There was a good correlation between Ptw,AVCtw,MVOtw,PTV,PUV,UntwR and age.2.Assessment of left ventricular twisting and untwisting of DCM patients19 DCM patients(range 18-80 yr,mean age 50.52±17.52 yr,2 females) and 21 age- and sex-matched normal controls(range18-80 yr,mean age 49.05±16.94 yr,5 females) were enrolled into this study.Then DCM patients were divided into two groups:E/A＜2 group and E/A＞2 group.The routine echo showed the left ventricle dilated and EF decreased.The results show that LV rotation degree, rotation velocity at baseline and apex were irregular changeable with the cardiac cycle;the rotation direction was clockwise at the base and counterclockwise at the apex,and are combined to yield a systolic counterclockwise twisting as seen from the apex,but the rotation at the basal and apex were the same direction in some patients.

扩心病患者左室扭转及解旋特征的研究选择扩张型心肌病(Dilated Cardiomyopathy，DCM)组患者19例(男性17例，女性2例，年龄18～82岁，平均50.52±17.52岁)，健康体检者21例(男性16例，女性5例，年龄18～80岁，平均49.05±16.94岁)作为对照组，扩心病患者按照E/A分为E/A＜2、E/A＞2两个亚组，结果显示：常规超声显示DCM组LVDd值增大，EF值减小；DCM患者左室心底部与心尖部心肌旋转角度、旋转速度随心动周期变化曲线明显紊乱；与正常组比较，DCM患者左室整体扭转角度和速度分别为(6.49±1.82)°、(67.84±15.60)°/s，较正常人显著减低P＜0.01左室舒张末及收缩末扭转角度DCM患者较正常人显著减低(P＜0.01，左室舒张末及收缩末时间在DCM-E/A＞2组较正常人及DCM-E/A＜2组显著缩短P＜0.01DCM患者左室解旋速度较正常人亦显著减低(P＜0.01，左室功能轻中度减低(DCM-E/A＜2)患者解旋率[(0.29±0.07)%]较正常人[(0.42±0.11)%]明显减低，但当左室功能重度减低(DCM-E/A＞2)时左室解旋率[(0.63±0.35)%]较正常人反而增加；左室整体扭转角度、舒张末扭转角度、收缩末扭转角度、解旋与左室射血分数未见明显相关性。3。

The numerical results become visible and vivid with software TECPLOT. And the data is processed to get temperature coefficient of ununiformity, velocity coefficient ununiformity and air diffusion performance index.

求得工作区域的速度不均匀系数、温度不均匀系数以及空气分布特性指标，为车室内气流组织分布的优化设计提供依据。

The velocity of ventilation across all unwelded fittings should be adequate to prevent the accumulation of silane in the case of a leak.

通过所有无焊接装置的通风速度必须足以防止在泄露情况下的硅烷积累。

In addition, the definition of characteristic air velocity is presented and the relationship between meteorological parameter and air inlet flow field at unwindy weather are discussed.

除了在180°的背风面区域附近，进风口各点的进风速度与侧风速度为二次多项式关系；而在180°的背风面区域附近，进风速度与侧风速度为Gauss分布关系。

Mount Tai plays a very important role in the case and makes the positive and minus extremes of vertical velocity in the upslope and lee, respectively. Meanwhile it affects the distribution of rain water and cloud water.

地形在此回流暴雪过程中，通过其强迫的、分别位于迎风坡和背风坡的正负垂直速度中心，对降雪起明显的增幅作用，同时对雨水和云水分布产生影响。

As of Tuesday, Google's results were still censored in China.

截至周二，谷歌的搜索结果仍受中国审查。

In order to make the positive action increase and negative one decrease, the sub-forces of the social factors must be adjusted to form a centripetal force.

在这一过程中，人的主体性发挥是社会有机体健康发展的灵魂。