查询词典 ring-pull can

The number of polynomial function over a finite commutative ring. This paper is on the basis of the research for the first question.With the structure of finite commutative ring,we know that a finite commutative ring can be expressed by direct sum of some finite commutative local rings.

本文主要基于对问题一的研究，并由有限交换环的构造可以知道，有限交换环可以由一些有限交换局部环的直和表示，于是就将问题简化到对有限交换局部环上多项式的判定。

The key components in laser gyro is He-Ne ring laser, and the reciprocal action theory between light and medium is the base in studying the ring laser, use the Lamb half classical theory, and on the base of density matrix theory, the optical Brounch equation was established, which described the movement of amplifying medium atom in the ring syntonic cavity, and according to the medium polarize theory the self consistent equations was deduced, which describe the light intensity and phasic of the counter-propagating wave. On the basis of this equations, adopted the simulation software MATLAB and virtual instrument programming language LabWindows/CVI, we can do some simulated experiments in study the phenomenas such as amplify and dispersive characteristic of medium, mode pushing effection, burned hole effection and pattern competition, lock-in of frequency and the characteristic of light intensity and phasic of the counter-propagating wave in laser gyro.

激光陀螺的核心部件为He-Ne环形激光器，而掌握光与介质的相互作用理论是研究激光器的关键，采用拉姆半经典理论为主，在密度矩阵理论的基础上，推导环形谐振腔中描述He-Ne气体增益介质原子运动的光学布洛赫方程，运用介质极化理论得出描述激光陀螺反向行波的光强、位相所满足的自洽场方程组，在此基础上，运用MATLAB仿真软件和虚拟仪器编程语言LabWindows/CVI，对激光陀螺中的介质增益色散特性、频率牵引效应、烧孔效应及模竞争、闭锁效应及环激光的光强和相位特性进行仿真试验研究，并且运用全量子理论，对激光工作原理进行分析，得出二能级系统单模辐射场的光子数密度分布，得出激光场的光子统计分布，仿真激光场的动态建立过程。

Taking the ring intersection at Bell Tower of Xi′an as an example,optimized signal timing scheme is proposed with the help of traffic simulation software VISSIM,and then the scheme is evaluated. The results of analysis indicate the scheme can reduce the vehicle delay and improve the traffic capacity of the ring intersection effectively,which validate that applying microcosmic simulation software VISSIM in signal timing of ring intersection is feasible.

以西安市钟楼环形交叉口为例，借助VISSM交通仿真软件，寻求其优化配时方案，并对方案进行评价，分析结果表明该配时方案能有效地减少车辆延误，提高环形交叉口的通行能力，验证了VISSIM微观仿真软件应用于环形交叉口信号配时的可行性。

It is understood that the 7-8 month of Inner Mongolia is the golden season of tourism can not only dilute the steppe Ren Lamu summer and watch the sunrise grassland, horse race, wrestling shows, Kumiss drinking, eating烤羊腿, Secrets of Genghis Khan Mausoleum brilliant ,响沙湾willing to experience滑沙silver, desert motorcycle, cable slide desert, desert surfing and other entertainment projects, but also to China, one of the three ring desert Kubuqi Desert sand ring mysterious feeling, here you victory can be used both hands to hit each other golden sand, you can hear the roar of the sound issued.

据了解，7、8月份正是内蒙古旅游的黄金季节，除了可到稀拉穆仁草原避暑，观草原日出，看赛马、摔跤表演，喝马奶酒，吃烤羊腿，探秘辉煌的成吉思汗陵，往银肯响沙湾体验滑沙、沙漠摩托车、沙漠滑索、沙漠冲浪等娱乐项目，还可到中国三大响沙漠之一的库布齐沙漠感受神秘的响沙，在此处你可用双手捧起金灿灿的沙砾互相击打，就能听到其发出轰鸣之声。

The following statements are proved:. A is equivalent to a diagonal matrix if and only if A is similar to a diagonal matrix.. If R is an APT ring, then A can be uniquely diagonalized as diag{e1,..., en} and ei divides ei+1.. R is an APT ring if and only if R/I is an APT ring, where I is a nilpotent ideal of R.

本文证明了以下结果：A相抵于一对角阵当且仅当A相似于一对角阵；若R是一APT环，则A在相似变换之下可唯一地化为对角形diag{e1，…，en｝，这里ei整除ei+1；R是APT环当且仅当R/I是APT环，这里I是环R的一幂零理想。

Through block wall experimental study we can find out that cracks would appear late and the load of crack-resisting and limit-resisting are increased obviously by the constructional measures in the wall. It is very effective method that the splayed cracks are controlled by sill ring beam, the horizontal bending cracks are controlled by structural column on the side of the wall and the horizontal cracks on the top of the wall are controlled by the whole ring beam. It is the most effective method that wall cracks are controlled by structural column, crout column and sill ring beam.

通过试验主要得到在墙体中采取构造措施后，墙体裂缝推迟出现，开裂荷载和极限荷载都有很大程度的提高，同时发现窗台圈梁在控制窗角的八字缝、墙体两侧构造柱对于防止水平弯曲缝以及全截面的圈梁在防止墙体和圈梁交界处的裂缝的出现能起到很好的效果，通过试验确定在砌块墙体中采取&构造柱+芯柱+窗台圈梁&的构造措施来控制裂缝是最为经济合理有效的。

The Metal seated butterfly valve adopts a double eccentric structure and a inclined cone seal. The seal-ring can be separated once open the disk, and the valve can be sealed once the seal-ring contacts the disk. This structure can decrease the friction torque when the butterfly valve opens and closes, and expanded the life time, and make opening and closing easily.

斜锥面金属密封蝶阀设计采用了一个双偏心和一个特殊斜锥椭圆密封结构，实现蝶板在开启瞬间密封面即分离，关闭接触即密封的效果，这种密封结构实现启闭无机械滑动摩擦，大大延长了密封件的使用寿命，并且达到启闭轻松自如目的，且具有密封自动补偿功能。

Because of the bonded crown ring the catalytic activity of complexes can be improved and the induce period of the oxidation for p-xylene to p-toluic acid was shortened from～ 10h to 0.5～5h, the fashion and position of the bonded crown ring as well as the distance between the crown ring and activity center have distinct influence on the catalytic activity of complexes.

结果表明：1。键连的冠醚环均能显著提高催化活性，并大大缩短反应诱导期5-10h，使TOF从21～60提高到152～222，约增加了5～7倍；冠环的键连方式和部位以及与活性中心的距离对催化活性影响明显；2。

The 12 hour point is marked with braille so you can identify which way is up. The upper most ring tells you what hour it is simply by its distance from the 12 hour marker. The secondary clear ring is your alarm. It's distance from the upper ring denotes how much time you have left to sleep. It's also a way to set the alarm without having to see the device.

用盲人文字标示的那个地方代表12点，白色圈和12点标志的距离代表当前时间，而透明圈和白色圈的距离则代表闹钟响之前的剩余时间，你也可以通过拨动它来调教闹钟，两个圈一重合，闹钟就会响了。

If the set weight need to be changed, you can control the lift weight according to the screw pillar's position in the 750-1000kg When adjust, loosen the locknut, every a ring going up, the set lifting weight can add 200kg, every a ring going down, the set lifting weight can reduce 200kg

4.2.3如需改变设定重量，可以在750-1000㎏范围以内，根据调整螺柱的位置不控制起升重量(调整时，先松开锁紧帽，调整每上行转一圈，原设定起重载重量增加200㎏，每下行转一圈原设定载重量减少200㎏，调整好后，用锁紧帽锁紧)。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。