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For multi-stage pump in series operation with the expeller seal combined with packing, the sealing water pressure should be: the lowest sealing water pressure of nth stage =∑Hi+0.7Hn, where n≥2

对于多级串联采用填料加付叶轮组合式密封，二级和二级以上轴封水压力一般为：第n级轴封水最低压力=∑Hi+0.7Hn，其中n≥2

For expeller seal combined with packing, leakage should be checked in place with packing: before the motor starting, open shaft seal water. If excessive leakage, please tighten gland nuts until guttate leakage.

对于付叶轮加填料组合式密封，应检查填料处泄漏量：启动前，先打开轴封水，如果泄漏量过大，应拧紧填料压盖螺母，直至泄漏呈点滴状为止。

This paper attempts to make recommendations, with a new view to the contract breach fine research, on the nature of contract breach fine should be compensation, punitive coexist, through the study of different national legislation on the different provisions of contract breach fine, combined with existing academic disputes, and the expurgation of confusion and false in the concept of contract breach fine.

本文试图通过对各国立法关于违约金性质的不同规定之考察比较，结合阐述学界对违约金性质所存在的争议，廓清违约金概念中的混乱与不实之处，对我国违约金性质应赔偿性、惩罚性并存提出建议，以期展现违约金问题研究的一个新视角。

This paper mainly consists of three parts:(1) Based on the Reddy's higher-order shear deformation plate theory and general von Kármán-type equations, put forward the governing equations of pre- and post-buckled vibration of several hybrid FGM plate forms which have not been studied adequately, triumphantly applying the perturbation technique combined with Galerkin method into equations solving, and get the comparatively simple result forms with complicated deduction at last;(2) As a new type of materials, piezoelectric fiber reinforced composite actuators were applied to optimal vibration control, interrelated informatons be depicted in this paper;(3) During the investigative cource, some factors not been considered adequently in other researches were discussed fully in the postbuckled vibration analysis, such as the temperature-dependent material coefficients, heat conduction and nonlinear vibration characteristic etc.

本文的研究工作主要包括：(1)基于Reddy高阶剪切变形板理论和广义Kármán型方程，给出了几类现有研究成果较少或没有彻底解决的FGM混合板结构的屈曲前和屈曲后振动特性研究的控制方程，成功将摄动-Galerkin混合法应用于求解过程，并给出了各控制方程相对直观且易于计算的解析解形式；(2)单向压电纤维增强复合材料(Piezoelectric Fiber Reinforced Composite，简称PFRC)是一种新型压电材料，本文将其应用到了结构振动控制研究当中，发现通过压电纤维体积含量的选择可以实现混合板结构的优化振动控制；(3)围绕几种有代表性的FGM混合板结构，讨论其屈曲后的振动特性，在分析中同时考虑热传导，材料物性参数的温度相关性，以及机/热/电荷载耦合效应对非线性振动特性的影响，最后给出了大量数值计算结果。

Suggested that wear of a polyethylene socket combined with a ceramic head might be as much as 20 times less than with a metal head.

Semlitsch等所做的早期体外磨损试验发现，聚乙烯臼配陶瓷头的磨损比配金属头小20倍。

①postoperative pain after hemorrhoidectomy can be safely and effectively controlled by Acuepoint inject of lappaconitine hydrobromide ②Using the Ashi-points-injection of lappaconitine hydrobromide after hemorrhoidectomy can reduce the pain for a longtime ③Combined with Yaoshu-point-injection can enhance the anaesthetic effect at the day of surgery④The edema at anal margin can be reduced by using of Ashi-points-injection of lappaconitine hydrobromide

①穴位注射氢溴酸高乌甲素对痔术后镇痛是安全而有效的；②术毕时使用氢溴酸高乌甲素阿是穴注射具有术后长效镇痛作用；③联合使用氢溴酸高乌甲素腰俞穴注射可增强手术当天的镇痛效果；④氢溴酸高乌甲素穴位注射具有防止痔术后肛缘水肿的作用。

When Lloyd's mirror interference is combined with grating diffraction the fringes for different colors produced by white light source can be coincident, thus the white and black fringes will be observed.

把劳埃镜干涉和光栅衍射结合起来，有可能使白光源产生的不同颜色的条纹彼此重合，从而能观察到清晰的黑白条纹。

Gesell developmental schedules test combined with head imaging examination may be used as an early diagnosis method for screening cognition impairment in microcephaly children with atelencephalia.

通过分析发现85.7%的头小畸形伴脑发育不良患儿有不同程度的早期认知发育落后，且影响因素是多方面的；并且认为Gesell发育量表测试结合影像学检查可作为头小畸形患儿认知发育的早期筛查指标。

Laser capture microdissection combined with RNA linear amplification in vitro can be successfully applied to obtain pure objective cells for research. The integrity of the amplified RNA is good and can be employed in further research.

结论LCM结合RNA体外线性扩增技术能成功地获取较为单一的研究目的细胞，扩增后RNA完整性较好，能用于进一步研究中。

On the other hand, the serenity and boundless extent of the sky over which he ruled, combined with the never-failing recurrence of day, led him to be regarded as an everlasting god:"Zeus who was and is and shall be."

另一方面，因为他主宰着静谧无垠的天宇和永不停息的日夜交替，人们把他当作一位永恒的神，称他为"过去、现在和将来的宙斯"。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。