平均

First, the backward Kolmogorov equation for the conditional reliability function and the Pontryagin equation for mean first-passage time and then- associated boundary and initial conditions are derived based on the stochastic averaging methods for quasi non-integrable, quasi integrable and quasi partially integ...

首先利用拟不可积、拟可积非共振及拟部分可积非共振Hamilton系统的随机平均法分别给出了研究该系统首次穿越问题的提法，包括计算条件可靠性函数的后向Kolmogorov方程及计算平均首次穿越时间的Pontryagin方程及其边值条件。

Then the FPK equation governing the joint probability density of amplitude and phase, the backward Kolmogorov equation governing the conditional reliability function, and the Pontryagin equation governing the mean first passage time are established, respectively.

随机微分方程。在此基础上，建立联合概率密度满足的Fokker-Planck-Kolmogorov方程、条件可靠性函数满足的后向Kolmogorov方程以及平均首次穿越时间满足的Pontryagin方程，分别求解这些方程得到联合概率密度、条件可靠性函数以及平均首次穿越时间。

Molecular conformation calculations were made for two possible conformers(eclipsed and staggered with respect to the methyl group)of the compound Calculated results show that:the stable conformer of pyruvic acid is the eclipsed one;The BLYP/6-31G* and scaled HF/6-31G* frequencies correspond well with each other and with available experimental assignment of the normal vibrational modes.

结果表明：在丙酮酸分子的两种构象中，重叠式比较稳定*B3LYP计算得到的构型参数与实验结果比较一致；在振动频率的计算中，BLYP未标度力场所计算的非CH3伸缩振动基频预测值和实验值的平均绝对偏差为10.4cm-1；而HF标度力场的平均绝对偏差为17.9cm-1。

The cavity can be divided into two typical zones: the Rayleigh_Benard-like convection zone governed by the centrifugal buoyancy force occupying the upper cavity, and the forced convection zone governed by the inertial-force down under. These two zones interact with each other via the exchange of mass, momentum and energy.

对换热而言，流场的振荡对上游盘和盘罩的换热影响比较明显，随离心浮升力的增加平均换热增强；下游盘的换热主要受流体冲击的影响，随惯性力的增加平均换热增强。

To speed up the calculation on micro-computer, some new concepts of dynamic relaxation factor, average convergence rate and total average convergence rate are defined in this thesis.

为了能够在微机上分析复杂铸件的流动问题，论文首次提出了"动态松驰因子"、"平均收敛率"及"总平均收敛率"的概念。

Results In the 14 cases, 13 achieved bone union and one nonunion. The mean time of union was 12 weeks. The wrist mean motion range was about 90% of the healthy lateral wrist and mean gripping strength was about 95%. Twelve patients suffered from no pain, one patient from slight pain, and one patient with nonunion from medial pain. According to Cooney's clinical evaluation system, the outcome was fine in 10, good in three and bad in one patient.

结果 14例中有13例愈合，1例不愈合，平均愈合时间为12周，平均腕关节活动度为健侧的90%，握力为健侧的95%，12例患者没有疼痛，1例轻度疼痛，另外l例不愈合有中度疼痛，除1例不愈合患者外，其余都能胜任原有的工作，按Cooney's评分10例优，3例良，1例差。

The mean time of union was 12 weeks. The wrist mean motion range was about 90% of the healthy lateral wrist and mean gripping strength was about 95%. Twelve patients suffered from no pain, one patient from slight pain, and one patient with nonunion from medial pain. According to Cooney's clinical evaluation system, the outcome was fine in 10, good in three and bad in one patient. Conclusion Palm??

结果 14例中有13例愈合，1例不愈合，平均愈合时间为12周，平均腕关节活动度为健侧的90%，握力为健侧的95%，12例患者没有疼痛，1例轻度疼痛，另外l例不愈合有中度疼痛，除1例不愈合患者外，其余都能胜任原有的工作，按Cooney's评分10例优，3例良，1例差。

The results of the comparative experiment demonstra te that the mean grain-size and the distribution of grain-size measured by this system is almost corespondent to that in practice.

对比实验表明，系统给出的粒度分布及平均粒度与实际粒度分布及平均粒度基本吻合

To explore the correlation between trace element iron and mean corpuscular volume, mean corpuscular hemoglobin concentration of children.

目的 探讨儿童红细胞参数红细胞平均体积、红细胞平均血红蛋白浓度与微量元素铁含量的相关性。

We calculated the average equivalent sound level and the detectable rate of workers hearing loss and made variance analysis,correlation analysis and fitted curve between them.

结果 听损检出率随平均等效声级的增加而呈明显的增加趋势，平均等效声级与噪声作业人员的听损检出率呈密切的指数正相关关系(相关系数r为 0 812 45 )。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。