定向的

At the first, the principle of the direction finder is discussed and its system configuration is introduced.

本文首先论述了该定向仪的原理及系统组成，之后又介绍了该定向仪的设计工作并进行了较为全面的误差分析。8940定向仪的一个突出特点是采用了数字采样方式对副载波进行解调而获得多普勒测向信息。

Objective To establish the spontaneous differentiation culture system of embryonic stem cells in vitro and provide methodological and morphological basis for the directional differentiation of ES cells.

目的建立胚胎干细胞(embryonicstemcells，EScells)体外非定向分化培养系统，为其向各种成熟细胞的定向诱导分化提供方法学和形态学基础。

By the new electromagnetic soft contact confinement process, the superalloy melt is half suspended by electromagnetic pressure, so the contacting area and time between melt and magnetic mold decrease.

将该方法和定向凝固技术相结合，提出了1种实现高温合金复杂形状电磁软接触成形的定向凝固工艺，探讨了该工艺下不同结晶器材料、磁化套高度及其所加方位对线圈中磁感应强度的影响，并在实验室中成功制备出了2种近叶片形状的高温合金电磁软接触成形的定向凝固样件。

To determine whether HPCs actually harbor the virus in infected people, Collins's team worked with a hematologist who removed HPCs from the bone marrow of 15 HIV-infected volunteers.

为了论证在感染人群中定向造血细胞是否在庇佑病毒，科林斯小组求助一位血液学家，他将15名感染HIV的志愿者骨髓里提取出定向造血细胞。

Through correlative analysis and path analysis, it finds that (1) the family environment and the colleges and universities environment have direct and indirect influence on self-identity development of students; and (2) the family environment and the colleges and universities environment exert the major effect on self-identity development of students through identity style as mediational variable, so identity style becomes the explanatory base of self-identity status. That is, the predictive effect of diffuse/avoidant identity style for identity diffusion, normative identity style for identity foreclosure, and information identity style for identity achievement respectively is most significant; and (3) family environment that is helpful, supportive, warm, expressive, and promote autonomy and independence possibly makes students form identity achievement or identity moratorium, family environment that is excessively cohesive and warm but lacking independence possibly promote students to form identity foreclosure, and family environment that lacks of supportive and warm possibly make students form identity diffusion; and (4) colleges and universities environments that have better relationship system, clear developmental purpose, and promote to pay attention to societal concerns, critical and explorative qualities, and provide healthy, expressive, democratic, open atmosphere facilitate identity development, in turn form advanced identity. Colleges and universities environments that only emphasize the receival of colleges and universities aims, order and instilments, and scarcely encourage critique, exploration, individuation possibly make students form identity foreclosure. However, the ones that is remote relationship system, and lacking support, and students don't cognize the aim of colleges and universities possibly make students form identity diffusion.

通过相关分析、路径分析发现：(1)家庭环境和学校环境对大学生自我同一性有直接和间接的影响；(2)家庭环境、学校环境对大学生自我同一性影响主要以同一性加工方式为中介变量，同一性加工方式成为自我同一性状态的解释基础，弥散—回避定向同一性风格对弥散型同一性预测力最大，信息定向同一性风格对成就型和延缓型同一性预测力最大，常规定向同一性风格对排他型同一性预测力最大；(3)相互支持、帮助、关心、自由表达和鼓励自主和独立的家庭环境促进大学生同一性的发展，形成成就型或延缓型同一性状态，过度亲密而缺乏独立性特征的家庭环境可能形成排他型同一性状态，而缺乏支持性，关系疏远的家庭环境可能形成弥散同一性状态；(4)良好的关系系统，明确的发展目标，鼓励学生对社会事务关注、倡导批判和探索精神，塑造良好、健康、可供自由表达、民主、开放的文化氛围的大学校园环境促进大学生同一性发展，形成高级、成熟的自我同一性，而一味强调学校目标的接受，强调秩序、灌输，缺乏对批判、探索、个性发展鼓励的学校环境有可能使学生形成排他型同一性状态，但若学校的关系系统疏远，缺乏支持性的民主的风格，目标不能被学生明确感知的学校环境则可能影响学生形成弥散型同一性。

By analyzing collinear equation and adopting absolute orientation method, the stereo pair of photos is relatively oriented.

通过解析共线条件方程式，利用相对定向直接法进行像对的相对定向。

When the oppositifolious character is in different genetic background, the process and efficiency of orientational selection is different.

通过F4代的26个转育的对生自交系进行对生性状的连续10代定向选择，以及三种不同的组配方式（对生×互生、对生×对生、互生×互生）对对生率的影响的研究，结果表明：连续定向选择是获得稳定对生系是一种有效的技术途径，对生性状在不同的遗传背景下，其定向选择的进程和效率是不同的。

A mode of the directionally growth of PAn on the surface of NaFe〓P〓rod-like particle was suggested. Some of aniline molecules in the reactants are fixed on the surface of skutterudite particles before the beginning of the polymerization. Other aniline molecules link with the aniline molecules fixed on the surface of skutterudite and form liner chains when the initiater is added into the reactants.

提出了聚苯胺在棒状方钴矿NaFe〓P〓材料表面定向生长的物理化学模型：在表面配位键的作用下方钴矿晶须表面首先附着了一层苯胺单体，在引发剂的作用下溶液中的苯胺分子在这层单体上定向聚合，形成了定向聚苯胺线性分子。

Though can not accurate induce neural stem cells specific orientation differentiation yet,to accompany the unceasing deepen recognize of convection mechanisms in cells' signal convection and discovery of new cell facter,new chemo-signal, Homo sapiens would solve the question of orientation differentiation from totipotential stem cell,multipotential stem cell to neural stem cell, orientation nerver ancestor cell then special tipe neural cell, implementation functional reconstruction betwen neural cell,for ultimate solve the proble of neural regeneration developing the way.

尽管目前尚不能准确有效的诱导神经干细胞特异性定向分化为某种特定的神经元，但随着人们对细胞间信号传递机制认识的不断加深和新的细胞因子、化学信号的不断发现，人类将能够解决从全能干细胞、多能干细胞到神经干细胞、定向神经祖细胞直至特异类型神经细胞的定向分化，完成神经元之间的功能重建，为最终解决中枢神经再生这一难题而开辟道路。

Based on the theory study, a directional drilling guidance system is developed for practical require, its working flow as follows: before construction, design the best track practically, and save in the system. During drilling, the system measures well oblique angle and azimuth to watch well track. Drill driver compares designing well track with measuring track showing on display unit, controls joy stick experientially, adjusts drill direction, finally realizes directional drill.

在理论研究的基础上，结合实际需要，研究设计了一种定向钻井导航系统，使用该系统进行定向穿越施工的工作过程如下：在施工前，根据实际情况，先设计一条最佳穿越路线，存入系统；在钻进中，系统通过对井轨的井斜、方位等参数的测量，对其进行实时监测；地面的司钻手通过对显示仪所显示的实际井轨参数及设计井轨参数进行比较，根据经验操纵操作杆，调整钻机前进方向，以达到对钻进过程的控制，最终实现定向钻井。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。