均压器

Tympanum of acoustical immittance examination presses tympanic plan: 5Ear is " B " model graph, 1 ear is " C " model tympanic graph. 1 · entire case all is in 2 treatment method the lens inside bazoo of road of caliber of the classics below spile of canal of tone of general anesthesia classics uses electric planing machine to cut below monitoring system implement resection of form of travel gland shape.

声导抗检查鼓室压鼓室图：5耳为"B"型图，1耳为"C"型鼓室图。1·2治疗方法全部病例均在全身麻醉经口气管插管下经口径路鼻内镜监视系统下使用电动刨削器行腺样体切除术。

In view of practical problem during Sulige gas field development, this paper complete follow study content. Study material balance theory of two district compound gas reservoir. Carry out stress sensitivity experiment on matrix rock and labor created fracture core from Sulige gas field with America Core Company high pressure high temperature flow experimental instrument to study stress sensitivity change rule of different permeability matrix rock and created fracture core at the condition of time and again switch on and off well and different drawdown pressure. Carry out depletion experiment on matrix rock of different permeability serial combination with different kinds of allocation, using double core clamper serial connected experimental apparatus, to study gas well production performance of bi-zonal compound low permeability reservoir during low pressure production stage. At the basis of experimental study, establish single well simulation model to analyze development index infection caused by stress sensibility and production performance infection rule caused by inner formation and outer formation of bi-zonal compound gas reservoir permeability variation while considering stress sensitivity.

针对苏里格低渗气田开发中存在的实际问题，完成以下研究内容；研究了两区复合气藏物质平衡原理；利用美国岩芯公司高温高压流动实验仪，对取自苏里格气田基质岩芯和人工造缝岩芯进行应力敏感实验，研究不同渗透率基质岩芯和造缝岩芯在多次开关井和不同生产压差条件下的应力敏感变化规律；采用双岩芯夹持器串联实验装置，对不同渗透率串联组合的基质岩芯进行各种配产条件下的衰竭实验，研究两区复合的低渗储层气井在低压生产阶段的生产动态特征；在实验研究的基础上，建立单井模拟模型分析储层应力敏感性和非均质性对开发指标的影响，研究考虑应力敏感时两区复合气藏储层中内区和外区渗透率变化对开发动态的影响规律。

In combination with the geological features of the ga wells in West Sichuan, such as multi-payzone high pressure gradients and a large lithological change in channel sand bodies, etc., the casing cementing and perforation completion were adopted for the main well and branch holes in the well group and the interzonal pressure seals of the main well and branch holes, and the separate well fracturing and producing were all realized through a completion string with dual-tubing and dual-packer.

结合川西地区气井多产层、高压力梯度、河道砂体岩性变化大等地质特点，该井组主井眼和分支井眼均采用套管固井、射孔完成，通过双油管和双封隔器的完井管柱实现了主井眼和分支井眼的层间压力分隔和分井压裂、分井采气。

It can be seen from above results this series of Gunn die has great potential both in working frequency and in output power capacity. Along with the improvement of semiconductor technique, their performance will be better. In the future, it is likely to realize a W-band low phase noise VCO on microstrip with the high Q-factor resonance referred to in our paper.

从测试结果可以看出，此系列体效应管芯片在工作频率和输出功率上均有较大的发展潜力，随着国内半导体工艺的发展，其性能也将得到进一步提高，结合文中所设计W频段高Q微带谐振器，将来有望在微带上实现W频段低相噪集成压控振荡器。

Because a bulk smoothing capacitor is usually installed on the DC side of many AC to DC converters, the characteristics of harmonic loads will be influenced by this capacitor. Nowadays, shunt active power filters can't reduce harmonics effectively for this voltage type harmonic-producing load. Therefore, a series active power filter is designed to meet the requirements of voltage-sourced harmonic loads. Both source current and load voltage are detected in order to reach the compensation voltage for the SAPF.

由於许多交直流电源转换器均在直流端并联一直流电容以作为稳压之用，此大电容将造成负载谐波特性的改变；此类谐波源负载，如果使用现今常见的并联型主动式电力滤波器并不能很有效解决此类谐波问题；因此本文将采用串联型主动式电力滤波器，并配合同时量测电源电流及负载电压的混合式控制模式，即可有效解决此类谐波问题。

UDZ Series liquid level indicator of flap disassembly fast and convenient, the installation position can be arbitrary choice, free to change the direction of observation, thus instrumented great visibility; UDZ series of cost-effective liquid level was significantly higher than that used multiple sets of glass plate liquid level of cost performance; UDZ series of liquid level indicator, the sender's device, as well as the liquid level with the main transmission medium within the complete separation of the measured structural design, so that level gauge in the job has pressure (up to 320KG), toxic and inflammable conditions, with absolute safety and reliability; UDZ-3 type uses innovative design, improve the sensitivity of the sensor, and its near-zero drift FarEasTone signals and long-term stability so that it has always been at the scene consistent level instructions; sensors and the main body has a certain interval, which can be solved effectively under high-temperature liquids (up to 480 ) remote detection and control; antifrost type UDZ Series Level Gauge, are I plant the patented product (Patent No.: ZL00221022 3), guarantees that the use of cryogenic liquid level gauge is not freezing (such as liquid CO2), the effective guarantee of the level of a normal job.

UDZ系列液位计的翻板指示器拆装快捷方便，安装方位可任意选择，观察方向可随意改动，因而仪表指示的可视度很大；UDZ系列液位计的性能价格比明显高于采用多组玻璃板式液位计的性能价格比；UDZ系列液位计的指示器，发讯器、以及液位变送均与主体内被测介质完全隔离的结构设计，使液位计工作在有压（可达320KG）、有毒和易燃的工况下，具有绝对的安全性和可靠性；UDZ-3型采用了新颖设计，提高了传感器的灵敏度，其远传信号近乎零温漂和长期稳定性使其始终于现场液位指示保持一致；传感器和主体有一定的间隔，因而能有效地解决高温液体（可达480℃）远距离检测和控制；防霜型UDZ系列液位计，是我厂的专利产品（专利号：ZL00221022·3），保证了在低温液体上使用液位计不结冰（如液体CO2），有效的保证了液位计的正常工作。

All parts that will contact ethanol in the divece such as condensor,buffer tank,coolingsnake pipe ar e made of stainless stwwl in order to guarantee that the finished product,ethanol ,is not polluted,Nodel Wstill may use disassembled U type heating pipe.When maint enance,it can be removed out of the still,So it is very convenient to clean the o uter wall of heating pipe and the inner wall of still.

本装置中凡接触酒精的设备部分，如冷凝器，稳压罐，冷却蛇管等均采用不锈钢，以确保成品酒精不被污染。W型之蒸馏釜采用可拆式U型加热管，在检修时可将U型加热管移出釜外，便于对加热管外壁及蒸馏釜内壁进行清洗。

The drum,screw, screen changer and die head are made of high quality alloyed steel (38CrMOAIA) with high hardness, strong corrosion resistance and long operating life after nitrogen treatment.

螺杆、料筒、换网器、模头均选用优质合金钢（38CrMoAIA），经氮化处理，硬度高、防腐能力强、使用寿命长；模头为衣架式支管递减型，流道利于熔料流动、无滞留现象，片材厚度均匀；压光琨内采用螺旋往复式水槽，水循环冷却，效果极佳；模头、换网器、料筒温度分段控制，整机传动同步运行。

The plasma ignition threshold of metal is got through experimental and numerical study. The vapour and plasma ignition times of the target are got based on the equation of heat conduction and cascade model. We suppose that the plasma is ignited when generations of new electrons are born in vapour generation time. The influence of temperature on the thermodynamics and optics parameters of material also have been considered in the model. The resulting theory has good agreement with the experiment and overseas report. A blade method to measure the laser spot is given in this paper with validation and error analysis. The plasma threshold of metals in atmosphere and water ambients both are diagnosed with the light deflection and piezoelectric transducer. A Q-switched pulsed Nd:YAG laser operating at infrared (1064nm), visible(532nm) and ultraviolet (355nm) wavelengths has been used. Al、Fe、Cu are used as targets and get a similar results with both method. Theoretical and experimental analyses are applied on the influence of wavelength on the threshold have been done, both of which have shown that the plasma threshold of metals decrease as the laser wavelength increases; The plasma threshold of metals are higher in water than in air and the pressure of the shock wave in water is five times higher than in air .

从热传导方程和雪崩电离机制出发，假设当电子增值210倍时，考虑了温度对材料热力学和光学参数的影响时，得到了气化和等离子体点燃的时间，利用该模型进行计算得到的结果与国内外报道及自行通过实验测得的阈值基本一致；提出了利用刀刃法测量激光光斑面积的方法，并通过实验进行了验证和误差分析；利用光偏转装置和压电换能器分别对空气和水中金属等离子体点燃阈值进行了实验诊断，激光器均为调Q－YAG激光器（波长1064nm，532nm，355nm，脉宽10ns），靶材分别为Al、Fe和Cu，两种测试方法得到的等离子体点燃阈值基本一致；本文从实验和理论计算两个方面讨论了波长对等离子体点燃阈值的影响，均得到了等离子体点燃阈值随著波长的增加而减小的结论；对空气中和水中不同环境下金属等离子体的点燃阈值进行了比较研究，得到了金属在水中的等离子体点燃阈值比空气中的大，且水中产生的冲击波的压强是空气中的5倍左右的结论。

First, the second category of professional pressure vessel design, manufacturing company specializes in designing and manufacturing various specifications strong magnetic coupling blender, stir strong magnetic coupling of high pressure - reactor, hydrogenation reactor, polymerizer, magnetic glass kettle, ultrahigh-pressure cauldron of hot water, Sulfide cans, refined liu kettle, autoclave reactor, pipeline reactor, mechanical seal reactor and its associated pressure tank, the condenser, Tajikistan, etc., its structure, low-pressure high school, heating, stirring form, the changes in speed, automatic Can be controlled by standard or as requested by users of matching custom, the main material 0 Gr18Ni9 (304), 0Gr18Ni10Ti (321), 0 0Gr17Ni14Mo2 (316L / 2 Mo Ti), and other trademark stainless steel, titanium, Hastelloy alloy, Study Nile because of alloys, nickel-wood, wood of Zirconium, tantalum wood, silver material, of tetrafluoroethylene, carbon steel, and composite materials as its use of composite panels made of.

一、二类压力容器专业设计、制造公司专业设计制造各种规格强磁力偶合搅拌器、强磁力偶合搅拌高压—反应釜、氢化釜、聚合釜、磁力玻璃釜、超高压水热合成釜，硫化罐、精镏釜、蒸压釜、管道反应器、机械密封釜，及与其配套的压力罐、冷凝器、塔器等，其结构形式、高中低压、加热方式、搅拌形式、转速变化、自动控制均可按标准或按用户工艺要求进行选配定制，主体选材0Gr18Ni9（304）、 0Gr18Ni10Ti（321）、0 0Gr17Ni14Mo2（316L/钼二钛）等各种牌号不锈钢、钛材、哈氏合金、因考耐尔合金、镍材、锆材、钽材、银材、四氟存里、碳钢等，及用其材料复合成的复合板制成。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐