特征方向

As operators of online sales of retailers. consumers must carefully study the online consumer behavior. understand and master their. characteristics and effects of factors such as.for lack of merit in order to find its own development direction.

作为网上销售经营者的零售商，必须认真研究网上消费者的消费行为，了解和掌握他们的行为特征和影响因素等，才能化不足为长处，为自己的发展找到方向。

As P〓O〓 is added to glasses, the structure of phosphate glass in droplet shows gradually thefeature of orthophosphate, and the structure of silicate glass in matrix changes from low polymerazation degree to high polymerazation degree.

液滴相内以为主的磷酸盐玻璃，随着P〓O〓组份的引入，逐渐表现出具有正磷酸盐的结构特征；基底相内以为主的硅酸盐玻璃，则逐步从组群状、链状向层状、架状高聚合度方向转变。

By anticipating the development trend of the oxygenator, the feature of ideal artificial lung and the study in the future can be summarized.

对人工肺的发展方向进行了展望，总结了理想人工肺应具备的特征和未来研究的焦点。

The karst caves could be accurately detected only when the boundary of the karst caves has a horizontal extension, as well as the interface of the karst caves is single plane and the normal direction is parallel or small angle intersection (0°~45°) with tunnel axis.

只有溶洞的边界有一定的横向延伸性，溶洞界面呈非常明显的单一平面特征，其法线方向与隧道轴线平行或以较小的角度相交(0°~45°)，溶洞才能被准确探测。

Phot oelastic experiment is an effective method which may directly observe and measur e the stress state in the body under the action of outside force in the laborato ry condition, so that it is a fact to gain quantitatively the orientation of max imum principal stress, the trajectories of principal stresses and the magnitude map of the stresses.

光弹物理模拟实验是在实验室条件下直接观察和测量在外力作用下物体内部应力状态和特征的有效手段，能够得到定量化的最大主应力方向、主应力轨迹线和应力级值分布图。

Firstly, electrization knowledge related to the research is introduced. After a deep study on various contact loss detection techniques, especially on the electric arcs detection techniques, we draw the conclusion that the untouched detection technique based on phototube sensor can acquire exact contact loss information, and will to be the leading technique for contact loss measurement in future. Secondly, combining with the special railways system in our country, we analyze the cause of the arcs, and the influence on the power supply system and the on board traction drive due to the arcs in detail, and study the arcs' spectrum characteristic. We also analyze detecting principles and put forward with a method - using phototube sensor to detect the contact loss arcs, conceive the configurations and detection flows of the measurement.

文章通过对电气化铁道相关知识的了解及对国内外离线检测技术的深入了解，尤其是对离线电弧检测技术的了解，总结出了基于光电传感器的非接触离线电弧检测系统能够得到准确的弓网离线情况，并且是国内外检测技术的发展方向；文章详细的分析了离线电弧产生的原因，电弧对机车牵引动力的影响情况，研究了我国铁路系统中离线电弧的光谱特征分布；分析了系统的检测原理，提出了采用光电传感器实现对离线电弧进行检测的方法，并设计了"电力机车弓网离线电弧检测装置"的检测功能和管理功能，规划了系统的组成结构及检测流程。

The predicted sand bodies are distributed in north-cast and approximately north-south orientation. The sandstone reservoir, which is getting thin and pinch out to the high west-north structure, is easy to form the lithological trap with sand body updip pitchout and the structural lithologic trap. Lens sandstones developed and are distributed in source rocks, It is easy to form lithologic traps.

预测砂体分布呈现出北东向、近南北向展布特征；向西北构造高部位方向变薄尖灭的储集砂体极易形成上倾尖灭岩性圈闭及构造－岩性圈闭，透镜体砂岩也较发育，其分布于生油岩区，容易形成岩性圈闭。

The feature that studies compose of value of socialist market economy is built deep is the need that builds Chinese characteristic socialist market economy, it is to hold to socialist market economy more this plastid of right way shows.

深入研究社会主义市场经济价值构建的特征是建设中国特色社会主义市场经济的需要，更是坚持社会主义市场经济正确方向的本质体现。

The great tour purchasing power is the drive power of promoting the region's tourism developmentln the regional space, scale economic and regional separation are one of the basic characteristics of promoting tourism industry, So we must arrange the regional tourism industry with a systematic method and give prominence to the central city. For its outstanding area in the regional space, central city has evident superiority in the regional ecnomic development, and has echelon between central city and its periphery scennic spots, which is the inducement mechanism of tourism industry's arranging, developing and advancing step by step. For the law of diminishing marginal utility and the theory of equilibrium, the max utility equilibrium of tourism consumption be at the point of tangency of undiscrepancy curve and the cost budget curve.

中心城市居民巨大的出游力是拉动其周边旅游地发展重要的内在驱动力；由于地缘关系，区域规模经济与地域分割并存，是旅游产业运动的一个基本特征，为此必须对区域旅游经济进行系统化布局，突出中心城市的产业中心性；因其区位条件独特，中心城市在区域经济发展中居于明显的优势，与周边城乡部位存在经济发展上的梯次性，这种梯次性是区域旅游生产力布局、产业发展梯次传动，最终整体联动的经济诱导机制；根据边际效用递减规律和旅游者最大效用均衡理论，旅游消费效用最大化的均衡在无差异曲线与开支预算线的切点(即旅游目的地选择的最佳位置)上，且随着边际效用递减，目的地选择的最佳位置向远离中心城市方向移动，这就是中心城市与周边旅游地互动关系的经济学解释。

"Three Represents" is not only the summary of CPC's historical experience, but also the prevision of the essential requirements of development trends for China's future society related to the world.

"三个代表"不仅是对党的历史经验的总结，更重要的是对中国社会未来发展本质性要求的深刻揭示：要求创造出符合社会未来发展方向的先进生产力；要求创造出符合时代特征并推进时代发展的先进文化；要求党的先进性必须不断提升，跟上时代的步伐；要求党的宗旨必须更具高层性；要求我们必须遵循科学的进程；要求中国的发展必须同世界的发展潮流相联系；要求必须不断地更新思维方式和行为方式。

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。