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The male and female rats (n=15, respectively) were randomly divided into three groups, and Fluoro-Ruby, a fluorescent tracer, was stereotaxically injected into the ventromedial hypothalamus, bed nucleus of the stria terminalis and posterodorsal nucleus of the amygdale by iontophoresis, respectively.Five days later, the rats were perfused, and the sections containing SDN-POA region and site of injection were cut on a freezing microtome.the sections were viewed to assess extent of tracer deposition in the injection site and to reveal the EGFP or Fluoro-Ruby fluorescence in SDN-POA under fluorescence microscope.

雌、雄性大鼠(各15只)随机各分成3组，分别通过离子电渗法将示踪剂Fluoro-Ruby注入下丘脑腹内侧核（VMH、终纹床核、杏仁核后背侧核。5 d后，灌流固定鼠脑，做冷冻冠状切片，荧光显微镜下确定示踪剂注入位置，并观察SDN-POA绿色荧光和Fluoro-Ruby标记荧光。

The seed embryoes were penetrated by 〓 ion beams of 75 MeV/u and the seed endosperms were implanted by the proper degraded 〓 ions, and soluble protein of the seedling in M1 generation was divided into 5 sections to analyze their changes at different molecular weight. 1 In comparison with control, the relative content of the second section (molecular weight is heavier in all sections) of all irradiated materials got down, while the relative content of the fifth section (molecular weight is the lightest) of those went up. 2 The penetrating seeds made the relative content of the first section (molecular weight is the heaviest) and the third section (mid-molecular weight) drop, while the fourth section went up. Moreover, the changes of the third section and the fourth section of the penetrated materials were clearly different from those of the implanted materials. 3 The difference between implanted embryo and implanted endosperm existed in deeper dropping of the first section and higher rising of the fifth section on relative content of soluble protein of the latter. 4 On irradiated materials at lower doses, there were exceptional changes of soluble protein, it may be thought that there was excited effect of low dose.

1.75MeV／u 〓O〓离子经过适当降能后注入小麦种子的不同部位和贯穿整个种子，对其M1代幼苗的可溶性蛋白质组分以及电泳中不同区段蛋白质组分相对含量加以分析，结果表明：1）同对照相比，随着辐照剂量的增加，所有辐照材料第二区段蛋白质组分的相对含量下降；而第五区段蛋白质组分的相对含量升高。2）种子的贯穿处理，同时也引起第一区段和第三区段蛋白质组分相对含量的下降以及第四区段的升高；其中第三、四区段的变化明显区别于注入效应。3）注入胚和胚乳的区别在于后者第一区段蛋白质组分相对含量的较大下降和第五区段的较大提高。4）小剂量辐照的材料，可溶性蛋白质组分的变化异常，可能与低剂量辐射兴奋效应有关。

In histopathology sections showed that alveoli were complete and clear with walls being thin and brittle. In experimental group, some petechia were observed in lung samples , the area of fibroblast and fibrinogen in histopathology sections were found , and the ground-glass predominance and reticulation structure in Micro-CT findings were increased during the period from the 1st week to the 3rd week, and degrade in the 4th week after the administration.

结果显示，控制组之肺脏检体色泽正常，没有出血，组织病理学则以I型肺泡细胞为主，无间质性肺炎且肺泡完整清净，肺泡壁薄而完整；实验组方面，第一~三周肺脏检体外观及组织病理的呈现出血点及出血病灶且越趋严重，第四周则消退，且Micro- CT影像评估亦相同。

Based on the observation of atomic force microscopy, the etching morphology of faces and sections with different crystallographic significance on α-quartz has been studied. The etching morphology on the natural crystal faces hexagonal prism faces (1010 and 01(average10, rhombohedron positive form face 10(average11, rhombohedron negative form face 01(average11 and the sections between any of the two crystal faces has been observed. It is shown that the etching pit on the same simple form has the same shape, while the orientation of the etching pits can be different. Different simple forms have different shapes of etching pits and the shapes of etching pits on positive form and negative form of the same simple form are also different.

通过对α-石英自然晶面六方柱面10(平均值10和01(平均值10、菱面体正形面10(平均值11与菱面体负形面01(平均值11、以及介于上述自然晶面之间的切面进行腐蚀形貌的观察研究发现，石英晶体同种单形的晶面腐蚀坑形态相同，但方位可以有变化，不同单形的晶面腐蚀坑形态不同；同一单形的正形与负形腐蚀坑形状不同；蚀坑形态能够反映晶体的对称性。

Take full account of the new sections of road to airport planning and coordination, as far as possible around the power to avoid a number of important facilities and buildings, then the original starting point for North and South Airport Road, north along the river channel distribution, the end of Station Road in the South and水泊provincial highway 804 phase, line length of 1763 meters, the road净宽24.5 meters, two-way four-lane, according to a standard design the construction of the road;水泊transform large sections of Interchange Interchange ramp and a long range of 1000 meters of the 804 provincial highway, the section of the transformation works for Covering 44,000 square meters of the road.

新建路段充分考虑路线走向与机场规划的协调，尽量绕避一些重要的电力设施和建筑物，起点接原机场南北路，向北沿河道展布，终点在大水泊公路站南与804省道相接，线路总长1763米，路面净宽24.5米，双向四车道，按一级路标准设计建造；改造路段为大水泊互通立交匝道和立交范围内长1000米的804省道，该路段改造工程为44000平方米的路面罩面。

This paper describes the structure of the seven sections of digital tube that principle, the principle of dynamic scanning, decoding principle, and on this basis, using hardware description language VHDL programming cathode seven sections of digital tube a total of four digital display of the cycle 1 - F, and Quartus Ⅱ platform in the realization of the modules on the timing and top-level simulation of timing simulation module, downloaded to the final realization of the development board of the digital characters and the show rolling.

本文还介绍了七段数码管的结构，显示原理，动态扫描原理，译码原理，以及在此基础上用硬件描述语言VHDL编程实现4位共阴极七段数码管循环显示1-F，并在QuartusⅡ平台上实现了各个模块的时序仿真和顶层模块的时序仿真，最后下载到开发板上实现了数字和字符的滚动显示。

At last, the best sections and orientations which were ensured by the comparable study between the thin sectional anatomy and multiplane TEE were used to diagnose the heart diseases. The best orientations and sections for diagnosing heart diseases were summarized and analyzed.

最后，将薄层断面解剖和多平面TEE对照研究所确立的最佳显示切面和显示方位进行临床验证，即用于诊断心脏各种常见疾病，分析和总结多平面TEE诊断心脏常见疾病的常用方位和最佳显示切面。

Structure-wise, there usually is an introductory section, a fugue and a postlude, but this basic scheme is very frequently expanded: both BuxWV 137 and BuxWV 148 include a full-fledged chaconne along with fugal and toccata-like writing in other sections, BuxWV 141 includes two fugues, sections of imitative counterpoint and parts with chordal writing.

结构明智，通常有一个导言部分，一个赋格和postlude，但这一基本计划是非常频繁地扩大了：既BuxWV 137和BuxWV 148包括一个完整的，以及成熟的舞曲真菌和托卡塔，其他部分一样书面BuxWV 141包括两个赋格曲，对位的模仿与弦写作部分章节。

This paper employs clay stone analysis to Permian-Triassic boundary strata from three deep water sections, Duanshan, Nashui and Liuqiao, located in Guangxi and Guizhou region, southwestern China. The result shows that clay stones from the three localities are composed of illite-montmorillonite mixed layer, montmorillonite and kaolinglite. There are rock fragments such as bipyramid quartz and zircon which are related to volcanic process found in all the sections except in Nashui section.

对贵州断杉、纳水以及广西柳桥3条深水相剖面上的二叠系－三叠系界线附近黏土岩的研究结果表明，在断杉、柳桥剖面黏土岩中的私土矿物主要由伊－蒙混层、蒙脱石和高岭石组成，碎屑物质中存在六方双锥石英、锆石等与火山活动有关的矿物；在纳水剖面黏土岩中未发现与火山活动有关的迹象。

The opened magnetic circuit is composed as tow NdFeB permanent magnets and a top plate without U-yoke. After take analyzed deeply for the opened magnet circuit with FEMM (Finite Element Method Magnetics) we find out the field distributing that is separated into three sections . One is the main area what we called as positive field section. Beside the main field there are tow areas that are called the inverted field sections. Loudspeaker arise a very serious distortion when the voice coil moving into inverted field areas. The direction of induced current in the coil part of entered inverted field area is same with the current driving into loudspeaker so that total currents increas largely and heat increase rapidly. With more coils moving into inverted area the voice coil will take on negative inductance properties. It is the main reason that voice coil is burned by heating with increasing current due to arise negative inductance. So opened magnetic circuit is not suitable for the woofers in which the voice coil have wider displacement range. When using this kind magnetic circuit design, the voice coil moving range should be less than the range of positive field to avoid loudspeaker arise serious distortion and heating. Even though voice coil moving range is in the positive area, loudspeaker will still arise more distortion because the field distribution is very cliffy at tow sides of the positive area and full range of magnetic field distribution is not parallel that will arise distortion. Base on above reasons, opened magnetic circuit is not an ideal magnetic circuit for low-frequency loudspeakers. But it can be used in mid-range or high-frequency productions.

开式磁路是由2片钕铁硼磁铁和主导磁板和导磁垫片组成，我们在实践过程中发现这种磁路结构不适合于低频扬声器的使用，我们通过使用FEMM（Finite Element Method Magnetics）软件包对该磁路进行了分析，该磁路的磁场范围被分成3个区域，其中在主导磁板附近形成一个正向磁场，在正向磁场的两边存在反向的磁场，音圈在工作时有很大一部分进入了反向磁场中，在反向磁场内线圈的感应电流方向与驱动电流方向相同，使得音圈呈现出负感抗特性，由于音圈的负感抗特性引起电流的增加导致音圈发热甚至烧毁，因此在扬声器中使用开式磁路时，音圈的运动范围应控制在正向磁场范围之内，否则音圈运动到反向磁场区域时将会产生很大的失真和发热，即使在设计时已经将音圈的运动范围控制在正向磁场范围之内，由于正向磁场的2个边缘磁场强度衰减太快，同时开式磁路中磁场的分布不是平行的，而是自由发散的分布，这样肯定会导致扬声器的非线性失真，因此我们得到的结论是：开式磁路并不是一个理想的磁路，它不适合于低频扬声器的使用，但它还可以应用于中高频扬声器。

I can not negligent, he should do what?

我不能不在意了，他要做什么呢？

It is very dangerous to swim in the river alone.

一个人到河里游泳是很危险的。