特征方向

This invention provides a kind of superthin tube heat exchanger. Its feature is that the heat exchanger comprises hollow level header that the refrigerant can flow through, several refrigerant tubes insert in the level header, so it can distribute the refrigerant that flow in the level header.

本发明提供一种超细管道热交换器，其特征在于：上述热交换器由以下部件构成：中空的水平集管，可以使制冷剂流过；若干个垂直制冷剂管群，插在上述水平集管内，可以使在上述水平集管内流动的制冷剂得到分配；隔断，设置在上述水平集管内部的上述垂直制冷剂管之间，能够改变制冷剂的流动方向。

Furthermore, it is verified that the peak suctions are highly correlated with the conical vortices by coherence functions of fluctuating pressures.

通过综合一些典型大跨度平屋面结构的风洞试验结果，分析了这种结构风敏感方向的风压分布特征及其产生机理。

Ni6 cluster is an octahedron belonging to Oh point group. Its 3Eg orbital presents strong negative exchange coupling and has a trend of antiferromagnetic couplings. Ni5 cluster is of three-side pyramidal structure belonging to point group C3v. The magnetic moment direction of Ni atom lying on vertex of the pyramid is antiparallel to the moment direction of the Ni atoms lying on underside of the pyramid, which present the characteristic of ferrimagnetic couplings.

具有Oh点群对称的八面体原子簇Ni6的3Eg轨道上存在很强的负交换耦合，呈现反铁磁耦合趋势；具有C3v点群对称的三边金字塔结构的原子簇Ni5位于塔顶点的Ni原子与基面上的Ni原子磁矩方向相反，但大小不等，呈现出亚铁磁交换耦合特征。

The first chapter introduces background、pursers and meaning、method、content and structure of this paper and the present conditions of current research. Some basic concepts are also defined in the first chapter; the second chapter systematically reviews the international market development theory, internationalization theory for enterprises based on technology, international risk prevention theory and other relevant theory. The third chapter introduces the current international operation condition of Chinese high-tech enterprises and analyzes the international operation character and motivation of these enterprises. Based on the analysis of the character of Chinese high-tech enterprises and the main elementary which will affect the entry-mode, the fourth chapter discusses the international strategy and the relevant entry-mode from the perception of resource. After selecting the suitable entry-mode, the fifth chapter discusses the problem of international risk. This discussion focuses on Chinese high-tech enterprises and establishes the risk prevention system, with the analysis of specific case. The last chapter summarizes the whole research content and brings forward the guidance for the deeper research.

第一章为绪论，介绍了论文的研究背景、目的与意义、研究方法、内容、框架以及研究的现状，还对本文的一些基本概念进行了界定；第二章系统回顾了开拓国际市场的理论、基于技术的发展中国家企业国际化理论以及国际风险理论等与本文相关的理论知识；第三章介绍了我国高新技术企业国际化经营的现状，并对其国际化经营的特征及动因进行了较为详细的分析；第四章在对我国高新技术企业的特点及影响其进入模式选择的主要因素分析的基础上，从资源角度探讨了其国际化战略及战略指导下的进入模式选择；第五章研究在选择了合适的进入模式之后，即将面对的国际风险问题，对我国高新技术企业的国际风险进行了聚焦，并构建了风险防范体系，还结合具体案例进行了探讨；第六章对研究的内容进行了总结，并指出了本研究的不足之处和进一步的研究方向。

For the sensor and hardware of wire rope tester has been mature, on the basis of the full-scale analysis of history and current situation of wire rope nondestructive testing in the domestic and overseas country, a research direction has been proposed that the feature extraction of the relevant characteristic with the broken wires quantitative inspection and research on effective recognition algorithm.

由于钢丝绳无损检测的传感器和硬件检测装置已基本趋于成熟，论文在全面分析了国内外钢丝绳无损检测技术历史及现状的基础上，针对钢丝信号的特点，确定了以&与钢丝绳断丝损伤定量相关的特征量提取和有效的识别算法&为基础的研究方向。

In China's economic and social cultural and many other factors formed under the authority of the Chinese people-oriented features include the authority of sensitive dependence on the authority of worship, as well as authority.

消费者权威取向的特征随时代改变，国家法令日益完善，广告的发展方向也必将随之调整，才能在不断改变的环境中立足。

A important feature in research region is: synsedimentary motion of faults result fault block"tilting movement"and change hydrocarbon migration direction as well as forming fault-bock trap in the center of resource rock, This is favorable for fault-block traps to accumulate hydrocarbon.

本区的另一个重要特征是断裂同沉积活动引起的掀斜运动改变了区域油气运移的方向，在烃源岩发育的沉积中心形成掀斜断块构造圈闭，有利于油气的聚集。

The paper adopt the way of minutia extraction after two-pass thinning algorithm.

经过以上各步骤，比较准确地提取了特征点的类型、坐标和方向。

The research progress on tomato late blight was summarized,including the character and race of Phytophthora infestans,mechanism of resistance,inheritance of resistance and resistance breeding.

本文综述了国内外对番茄晚疫病菌特征特性、生理小种以及番茄抗晚疫病机制、抗性遗传规律、抗病育种等方面的研究进展，并对当前生产和研究中存在的问题和今后研究方向进行讨论。

The multi-polarization radar method developed in recent years can deduce the feature and changing rule of COF in the ice sheet according to the variation of the reflecting power in different orientation, and determine the history of stain and stress in the ice sheet further. It′s important to understand the flow mechanism and dynamic course and explain the changing law of the ice sheet in the past, present and future.

近年发展起来的多极化雷达技术可根据不同方向雷达反射功率的变化推断冰盖内部冰晶组构特征和变化规律，进而推断冰盖内部应力应变历史，这对于理解冰流机制和动力过程以及解释冰盖过去、现在和未来的变化规律具有非常重要的作用。

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。