棒的

This invention discloses a new technology for preparing rear earth ionic doped fiber prefabricated rods with DC-RTA technology in a sol-gel method including preparing sol containing necessary doped ions, coating said sol uniformly on the inner wall of the quartz glass tube and burning it under high temperature to coagulate and vitrify them to a doped layer and repeating the above process to form a fiber prefabricated rod by oxygen and hydrogen flame after the doped layer reaches to a designed thickness and the fiber prefabricated rod can be made to various rare earth ionic doped fibers by an ordinary drawbench technology.

本发明属于光纤制造和光纤激光技术领域，具体公开了一种利用溶胶凝胶方法中的DC-RTA技术制备稀土离子掺杂光纤预制棒的新工艺。该工艺步骤包括预先配制好含有所需掺杂离子的溶胶，将该溶胶均匀涂覆在石英玻璃管的内壁后高温灼烧，使之凝结并玻璃化为一层掺杂层。反复上述涂覆灼烧过程，在掺杂层达到设计厚度后由氢氧焰高温收棒形成光纤预制棒。该方法所得到的光纤预制棒可以通过普通拉丝工艺拉制成各类稀土离子掺杂光纤。

Results revealed that the large side insulation of the stator bar in slot is available for ultrasonic pulse-echo testing; Coupling transducer on the surface of a practical stator bar could minimize the influence on the measurements of velocity, contributing no destructivity of the ultrasonic testing for stator insulation; The simultaneity of same velocity and higher attenuation can be used to detect insulation delamination from conductors; Compared with the wide sides of the bars in slot, the short sides of the bars near the exit from slot and the end bars had a same velocity and a higher attenuation; The velocity might be exactly measured on the shot sides of the bars near the exit from slot and the end bars, while the attenuation might not, which were examined though filed tests; V min decreased greatly and V av decreased slightly with the service time of the bars.

在实验室对线棒多种结构处的主绝缘和不同运行年数(未老化、16、18 和23年)线棒的主绝缘进行了低频超声反射法检测试验，并进行了现场试验，发现(参见 Hao et al， IEEE DEI， to be published)，槽部线棒的宽面绝缘不受换位绝缘的影响，比窄面绝缘更适合超声测量；线棒表面平滑的半导体层减小了耦合剂对超声测量的影响，实现了无损性；波速不变而声衰减减小可以检测线棒出现绝缘与导体脱壳缺陷；出槽口和端部线棒的窄面绝缘与槽部线棒的宽面绝缘相比，声衰减大而波速一致；现场试验验证了波速不受绝缘结构和现场测试条件的影响，而声衰减受以上因素影响很大(参见 Hao et al，中国电机工程学报， Vol.23 No.4)； V min 随运行年数明显减小， V av 随运行年数慢慢越小。

The thermal focal distances of grooved rod is measured. Compare with the results of ordinary rods, the result showes that the thermal focal distance has increased 12.9%.

对热焦距进行了测量，与普通的棒的实验结果进行了对比，螺纹棒比普通棒的热焦距大12.9%。

Because of the vesicle's impenetrability, the rod segments exert an inhomogeneous entropic pressure on the vesicle and induce a change of the vesicle shape.

由于囊泡膜对刚棒的几何空间限制，减少了刚棒的活动空间，其构象熵减少，因此对囊泡膜表面施加不均匀的熵致压力，导致刚棒锚泊囊泡的形状变化。

Basic Materials: Crayons and paper Des alternative materials: Alcohol, non-transparent tape, scissors, knife art, palette, brushes, painting knives, a clay, washcloth, the first paper Oil painting stick basic techniques Cai-point method Oil painting stick with one end of the paper in light colored dots to form a hit.

基本材料：油画棒和纸德替代材料：酒精，非透明胶带，剪刀，刀艺术，调色板，画笔，画刀，一个粘土，面巾中，第一篇论文油画棒基本技巧彩点法油画棒的一端纸浅色点，以形成一个打击。

Part-length control rods of PWR stay in the core so long that they result in shadowing effect on fuel burnup and some other deficiencies.

针对这种情况，本文进一步研究了短棒的功能，讨论了短棒用于轴向燃耗控制的原理，提出将短棒分两组使用。

The results show that the increasing weight of tungsten oxide nanopowders and the color of tungsten nanomaterials turns light yellow from dark blue and black by increasing oxygen partial pressure in blown gas; the decreasing weight of tungsten oxide nanopowders and the color of tungsten oxide nanopowders becomes dark blue by the plasma that compares row increase including the hydrogen.The tungsten oxide nanomrods was increasing with chamber pressures. Urged nanoparticles to have the clavate fusion phenomenon in the development process with increasing plasma currents, and increased the nanorods distribution quantity along with the generated time to be more, 12 minutes later presents all nanorods. This system to prepare a monoclinic crystal W18O49 nanorods successfully, each hourly output approximately is 0.33 gram, and monoclinic crystal WO3 tungsten oxide nanoparticles, each hourly output approximately is 5.77 grams, its growth mechanism is Vapor-Solid solidly the physiognomy explanation.

研究结果显示，随著氧分压增加时，氧化钨材料呈现重量增加趋势，其颜色从黑色至深蓝色转为淡黄色；随著电浆气中含氢气比列的增加，氧化钨材料呈现重量减少，其颜色从淡黄色至深蓝色转为黑色；针对於氧化钨奈米棒而言随了腔体压力增加，奈米棒的数量也会随之增加，而电浆电流的提高，促使奈米颗粒在成长过程中有了棒状熔合现象，且随了生成时间的增加奈米棒分布数量越多，直到12分钟后呈现出多是奈米棒；本制程在适当制程条件下成功制备出单斜晶体W18O49奈米棒，每小时产量约为0.33 公克，与单斜晶体WO3氧化钨奈米颗粒，每小时产量约为5.77公克，其成长机制可透过气-固（Vapor-Solid， VS）相法解释。

By abration experiment, the impact action between pin and particle is studied, and the impact position is revealed according to abrated position and abrated degree in a pin, by which the structure design of GLS pin mill is suggested based on this analysis.

采用颗粒与销棒相互冲击碰撞的磨蚀实验，根据销棒的磨蚀位置及磨蚀程度，分析了颗粒在粉碎过程中与销棒碰撞的部位，研究了颗粒与销棒相互作用的规律，揭示了颗粒在销棒粉碎机中的粉碎机理，由此提出了销棒粉碎机结构设计的改进措施。

Class 2 runner dropped his stick on the ground when he was passing it on to the fourth runner.

2班的跑第三棒的运动员，在把棒传给跑第四棒的运动员时，把棒掉在了地上。

A multiclad layer optical fiber prefabricated rod includes core rod and outer clad layer; the core rod consists of core layer, inner clad layer and low-hydroxyl high-purity clad layer in sequence, and the outer clad layer includes a high-purity outer clad layer and a subhigh-purity outer clad layer.

本发明涉及光纤制造领域中一种多包层光纤预制棒及制造方法，它包括芯棒和外包层，芯棒由芯层、内包层、低羟基高纯包层依次组成，外包层分为高纯度外包层和次高纯度外包层，它解决了现有的光纤制造技术中，光纤预制棒的外包层所使用的高纯原材料比重过大，从而导致高纯原材料利用率低、制造成本高的问题。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。