压出

This work gives the general solution for the generalized two-dimensional problem of piezoelectric media, and then presented the solution for the corresponding plane problem as a special example. Moreover, a detailed discussion is made about the relation between two theories.

本文推导了一般各向异性压电介质广义二维问题的 Lekhnitskii 理论，作为其特例，给出了压电介质平面问题的解法；并系统地总结了所建立的 Lekhnitskii 理论与 Stroh 理论的内在联系及各自的特点。

Its compressive strength value is above 45% superior to the single-row brick-up, which shows the compress resistance superiority.

力学试验表明三排孔砌块的砌体抗压性能有很大的提高，其抗压强度要比单排孔砌体高出45％以上，体现了其抗压的优越性。

Under spraying humidification state, the parameters of JYPW-1 spraying axial fans for textile enterprises such as flow, total pressure, efficiency, shaft power and acoustic power level changing with water-air ratio were tested, and the performance parameter curve changing with water-air ratio was obtained. The approximate formula of its pneumatic performance in different water-air ratio condition were deduced which can be referenced for of selection and project application.

在喷雾加湿工况下，对纺织空调系统所用的JYPW-1型喷雾轴流通风机的流量、全压、全压效率、轴功率和比A声级噪声等性能参数随喷淋水气比的变化进行了测试，得到了喷雾风机性能参数随水气比变化的曲线，并整理出喷雾风机在不同水气比时，其气动性能的近似计算公式，可供喷雾风机选型和工程应用时参考。

Focused on the instability for the holding performance of press, this paper introduces the analysis computation on seal- ing property of press by MATLAB program, finding out its labile cause and preparing the improved actions.

某压机保压性能不稳定，采用MATLAB程序进行分析计算，找出原因所在，并提出了改进措施，效果很好。

When the pulverized material has been properly sized, mixed with the additive in the amount determined by testing, laid and compacted to the required density, surfaced with a chip seal coat, thin hot mix overlay or other light surfacing, a long lasting, low cost pavement can be constructed with a minimum of new material.

只有当被压碎的材料已制成合适的大小，混合了经测试确定的适量添加剂，铺设并压紧至要求的密度，再用一层碎片封闭层、热混薄覆盖层或其它轻质的材料铺平表面，经时效处理后，方可达到以用量最少的新材料构筑出低成本路面的目标。

During the monofactor hydrocarbon expulsion stage, oil saturation is the only controling factor to the expulsion of hydrocarbons, and the driving force of hydrocarbon expulsion is compaction; in the difactor hydrocarbon expulsion stage, the expulsion of hydrocarbons is doubly controlled by critical oil saturation and critical...

在单因素排烃阶段，含油饱和度是烃类排出的唯一控制因素，排烃的动力是压实作用；在双因素排烃阶段，排烃受临界含油饱和度和临界破裂压力的双重控制，排烃的动力是流体超压。

During the monofactor hydrocarbon-expulsion stage, oil saturation is the only controling factor to the expulsion of hydrocarbons, and the driving force of hydrocarbon expulsion is compaction; in the difactor hydrocarbon-expulsion stage, the expulsion of hydrocarbons is doubly controlled by critical oil saturation and critical fracturing pressure, and the driving force of hydrocarbon expulsion is fluid overpressure.

在单因素排烃阶段，含油饱和度是烃类排出的唯一控制因素，排烃的动力是压实作用；在双因素排烃阶段，排烃受临界含油饱和度和临界破裂压力的双重控制，排烃的动力是流体超压。

Over the years, the company to new wall-based equipment, the new wall materials and equipment modernization as a strategic positioning, develop and produce various types of Press Products: automatic hydraulic press,×ú, fly ash sand brick, autoclaved sand-lime brick.

多年来，公司以新型墙材设备为基点，把新型墙材装备现代化作为战略定位，研制并生产出多种类型的压砖机产品：全自动液压砖机，免烧砖机，粉煤灰砂砖机，蒸压灰砂砖机。

A typical domestic sand jet fracturing tool is introduced. The basic structure of jet was introduced. The field applications indicate that sand jet fracturing is effective in improving production.

并对国内所使用的典型水力喷砂压裂工具进行了介绍，给出了工具中关键部件喷射器的基本结构，并联系国内现场实际的应用情况，说明了水力喷砂压裂是一种有效的增产技术措施。

According to the permeability test and self-mastery "L" type model test, the coefficients of permeability in horizontal and vertical direction at different degree of compactions were obtained. Based on the Darcy law, calculating formula for the model was deduced.

通过室内渗透试验、自制&L&型相关模型试验测得在不同压实度下水平向和垂直向的渗透系数，并根据达西定律等相关理论推倒出适用于该模型的计算公式，得到水平向和垂直向渗透系数随着压实度的增加逐渐减小，验证了该方法测定渗透系数的可行性。

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。