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First , we analyze the relation between thickness-shear and flexural vibrations mode in the AT-cut quartz crystal plate by Mindlin elastic plate theory , then obtain the result by the improved Mindlin plate theory , finally compare them and find the differences . The result of improved Mindlin plate theory excelled the Mindlin plate theory .

我们首先用Mindlin弹性板理论分析了AT切石英晶片中厚度-剪切和弯曲振动模态之间的色散关系，再用修正后的Mindlin板理论得到色散关系，并对两者进行比较说明，修正后的Mindlin板理论得到的结果明显要优于Mindlin板原理论。

Finally the advantages of quaternion method over Euler met...

最后讨论了四元数法优于欧拉法之处。

In order to discuss different teaching effect based on the fact, select palm-up attack→ palm-down quick push→ left push and right attack→palm-down slow chopping and down slow chopping→ palm-down quick push→palm-up attack→left push and right attack, compare to traditional teaching program.this research has been done in grade 2001、2002 students at ChengDu PE institute, According to analyse the research data and show, a program is better than B and C.

为了探讨不同程序的教学效果，根据现实条件，选出正手攻球→反手快推→左推右攻→反手慢搓和反手慢搓→反手快推→正手攻球→左推右攻与传统教学程序进行对照实验研究。实验在成都体育学院体育系2001级和2002级中进行，经对实验数据进行统计检验，结果显示：A教学程序优于B和C教学程序。

Secondly, the problem of linear prediction for Qy in the original model and its transformed model is considered, the notion of linear sufficiency and the problem of comparison of linear models with respect to prediction problems are proposed and the corresponding necessary and sufficient conditions for the transformation to be linearly sufficient and for one model to be superior over another are given, respectively.

其次，我们讨论了原始模型和变换模型下Qy的线性预测问题，提出了在该预测问题意义下的线性充分性和模型比较的概念，分别给出了变换Fy是线性充分的、以及一个模型优于另一个模型的充分必要条件，此外还得出了一些特殊结论。

Among these immoniumsalts, HOBt-based reagents were proved to be superior to the corresponding uroniumsalts in both reactivity and racemization.

其中HOBt衍生的亚胺正离子型缩合剂无论在反应活性还是在产物光学纯度方面都大大优于脲正离子型缩合剂。

They are formal,reserved,have no feelings and consider themselves racially and culturally superior to foreigners.

他们刻板，不苟言谈，没有情感，认为自己在种族和文化方面都优于外国人。

Activation analysis and non-radiometric method have been used to measure long-lived fission product nuclides. Their sensitivity is superior to that of traditional radiochemical analysis.

活化分析以及非放射的仪器分析方法被用来测量长寿命裂变产物核素，其分析灵敏度优于传统的放化分析法。

Radiolucent zone around the femur prosthesis and stress shileding occured 6 months after operation.

兔立体网孔表面生物型人工膝关节假体植入动物体内的固定强度在术后3 个月和6 个月优于骨水泥假体。

The simulated results after the assimilation show that it is the best to perform the intensive radiosonde observation in the upstream of the rainfall area and the moisture passageway area at the same time to improve the heavy rainfall forecast.

从个例研究结果来看，在同化时间窗都为12小时的条件下，使用加密探空观测资料进行三个时刻的数据同化形成的初值明显优于同化两个时刻的观测资料形成的初值。

The results of two inversion algorithms indicate that RAGA is superior to SGA. RAGA inversion is an applicable method for both of simple and complex velocity model.

二种算法的反演计算结果说明，加速遗传算法性能优于标准遗传算法，无论针对简单速度模型还是复杂速度模型，加速遗传算法都是适用的。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。