查询词典 average density

Based on the state of the art of spray cooling, the following topics have been studied:As to a cone-axisymmetric spray cooling systems, the spray area was divided, and the slip-flow boundary condition was introduced. Based on an assumption of the coniform spray, an equivalent continuum model of the average spray density was established.

当前的研究工作大多集中在实验研究方面，然而由于不同研究人员实验条件的不同使得各种研究结论有所差异甚至相互矛盾，有关喷雾冷却的理论研究相对更加缺乏，因此针对电子器件的喷雾冷却技术的理论和实验研究都尚有广阔的发展空间。

A linkage map was constructed using 151 polymorphismic markers.The map spans1841.9 cM covering 12 rice chromosomes with an average interval of 12.1 cM,which wellintegrated the markers from the high density linkage maps of rice.

以151个多型性标记位点构建了12条染色体的遗传连锁图谱，该图谱以标记间平均间距为12.1cM覆盖了水稻基因组的1841.9cM，该图谱较好地整合了目前已发表的水稻遗传图谱上的分子标记。

The minimum average threshold current density of 20 A/cm 2 is achieved.

获得了最低为20 A/cm2的平均阈值电流密度。

The flow stress was evaluated from the average dislocation density of the matrix and all the R-grains.

利用该模型可得到整个热加工过程流变应力变化，晶粒的形态、晶粒取向和大小及分布。

The constituent ratio, prevalence and average ectoparasite abundance were used to reflect the prevalence and density of ectoparasites. Non-parametric Mann-Whitney U-tests were used to test differences in the abundance and richness of ectoparasites between female and male hosts. Spearman correlation analysis was used to analyze the relationship between ectoparasites and the body parameters of hosts.

用染虫率和虫指数反映体表寄生虫的流行和密度状况，用统计分析中的非参数检验（Non-parametric Mann-Whitney U）分析雌雄小兽宿主间寄生虫数量差异，用Spearman相关分析分析体表寄生虫数量与宿主身体参数的关系。

For chromatic editing such as fade-in/fade-out and dissolve, the image edge will change from clear to vague and to clear again during the editing process So we use average edge density to detect fade-in/fade-out and dissolve Experiments indicate that this method can detect fade-in/fade-out and dissolve.

并针对两类编辑模型，提出了可以较好地描述各自独特规律的几个参量。根据淡入／淡出和慢转换过程中边缘由清晰到模糊再逐渐到清晰的特点，提出了用平均边缘强度AED进行淡入／淡出和慢转换的检测。

This burst waveform has benefits compared to a continuous wave emission in that the laser peak power can be very high for measuring long distances, yet the average power can be kept low for eye safety. And more, the pre-amplified optical receiver possessing temperature compensation and feedback resistance noise compensation is designed which is based on the noise spectrum density theory of silicon avalanche-photodiode.

同时根据硅雪崩光电二极管噪声谱密度理论，设计了具有温度补偿和反馈电阻噪声补偿的激光测距仪前放接收模块，详细分析了背景光，反向高压和反馈电阻对于Si-APD接收性能的影响。

2Particle numeral density distributing law of the system not only bear on and average speed and seat gravitational potential energy of system,but also bear on grads of temperature and speed about distance of system,at one time,it bears on whole spore speed of system.

本文详细的分析了地球大气系统粒子的数密度的分布规律，从中发现：(1)该系统的平衡条件有别于一般热力学系统的平衡条件；(2)该系统粒子数密度分布规律不仅与系统粒子的平均速度和所在处的重力势能有关，而且还与系统的温度和速度的距离梯度有关，也与系统的整体运动速度有关。

After that, the model is validated safety and reliable by using the State Matrix Equation of the Petri network. According to the theory that the State Topological Map of Petri Network and Markov chain are isomorphous, the Markov chain of the model is deduced, by which some function indexes such as marked density of probability, average token-number, and usage of transformation can be calculated.

同时，本文运用Petri网系统的状态矩阵方程的方法对模型进行了可达性验证，经验证该模型是安全可达的，并根据随机Petri网的状态图同构马尔可夫链的原理，获得该模型的马尔可夫链，运用该MC链分析了模型的标记概率密度、位置中的平均标记数以及变迁的利用率等性能指标。

Moreover, simulation results show that it has a better performance in terms of the probability density functions of the envelope and phase, the level crossing rate, and the average fade duration than the previous methods.

仿真结果表明，改进后的方法生成的复随机过程的幅度、相位的概率密度函数及平均电平通过率、平均衰落持续时间能更好地逼近理论参考值。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。