The contrastable optical ring-down cavity micro-gas cell is designed for the trace gases concentration measurement used ring-down cavity method.
在采用光腔衰荡技术实现痕量气体浓度测量时,设计了用于痕量气体浓度测量的比较式光腔衰荡气室。
Method: Open drainage and dental pulp cavity seal were adopted.
方法:采用开放引流、髓腔封闭二种方法。
An example was demonstrated to illustrate the correctness and effectiveness of the numerical method as well as to analyze the factors influencing mold cavity temperature.
最后通过实例分析了影响型腔温度的各种因素,也验证了文中算法的正确性与有效性。
Moreover, comparing to traditional mechanical analysis, this paper introduces the design of backing plate and provides a new method for the design of injection mold cavity.
以注塑模垫板的设计为例详细阐述,并与传统力学分析对比,为注塑模具的型腔设计提供了一种新方法。
This paper advanced a study method that can observe plastic deformation behavior of surface layer of die cavity by showing austenite grain, size, crack morphology and propagation mode.
提出了通过显示奥氏体实际晶粒度、裂纹形貌和扩展方式来分析热锻模具型腔表层塑性变形行为的试验方法。
The structure design, cavity preparation, and measurement method of Loaded Q of an X-band TE011 mode superconducting Nb cavity have been described.
本文记述了一个X -波段,TE_011模式超导铌腔的结构、制备工艺、Q值测量方法和测量结果。
The machining project of control cavity was set down based on the orthogonal test method, and the influence of control hole A and B on the hydraulic response of injector was tested.
根据正交试验法,制定了喷油器控制腔偶件的加工方案,并就控制A、B量孔尺寸对液力响应的影响进行了试验研究。
The results show that for the double-reentrant cavity with regular drift region, this method is superior to the others in higher accuracy and less computing time.
结果表明对于漂移咀规则的重入腔,采用分区场匹配的经典方法仍有明显的优点,它既可以保证很高的精度,又只需要很少的计算量。
The influence of the plasma loading on the quantum character of absorbing and dispersive cavity is investigated by the canonical quantum method of the electromagnetic field.
利用色散吸收介质中电磁场的正则量子化方法,研究等离子体加载对色散吸收介质光腔系统量子性质的影响。
Conclusion the therapeutic effect of false arteria femoralis by using compression method and injecting thrombin into aneurysm cavity by color doppler ultrasonic guidance is therapeutical and safe.
结论在彩色多普勒超声引导下运用压迫法结合瘤腔内注射凝血酶治疗假性股动脉瘤的方法是安全有效的。
A new process method is proposed to improve the light output power of GaAs vertical cavity surface-emitting lasers (VCSELs).
采用一种新的工艺方法提高了垂直腔面发射激光器的输出功率。
During programming for the trough and cavity, programming of arc method is used for some typical positions of trough and cavity to improve the machining precision.
在编制槽和型腔加工数控程序的过程中,针对槽和型腔的典型部位采用趋近圆弧的编程方法进行编程,提高加工精度。
A state space model is described, the time response of ferrite loaded cavity is proposed and a new digital measuring method devised. Results of actual measurement on model cavity are given.
本文建议了描述铁氧体加载谐振腔时间响应的状态空间模型和一种新的数字式测量方法,并给出了在模型腔上实测的结果。
In this computation a fluid-elastic plastic model and a finite difference method of Lagrange coordinate are used The parameters of shock, cavity and waveform are obtained and analysed.
在这个计算中,采用了流体——弹塑性变模量模型,使用了拉格朗日坐标有限差分方法和人造粘性,获得了冲击波、空腔和波形参数,并分析了这些参数。
Conclusion One-stage bone grafting filling medullary cavity after over-reaming is an appropriate method for pandiaphyseal osteomyelitis and can win high healing rate.
结论髓腔超扩植骨封闭方法治疗全骨干骨髓炎是可行的,可以获得较高的成功率。
Feasibility and accuracy of the method has been verified by using sedimentation experimental data of cavity flume from the Yangtze River Scientific Research Institute.
采用长江科学院空腔回流泥沙淤积水槽试验数据,验证了回流区泥沙淤积计算方法的可行性和精度;
With more and more accuracy demands for detecting artificial cavity, unitary geophysical method couldn't meet the requirement of high-resolution detecting.
随着人们对地下溶洞和人工洞室的探测精度的要求越来越高,单一的物探方法并不能满足高精度勘探的要求。
The wavelength tuning of MEMS-based tunable vertical cavity semiconductor optical amplifiers (VCSOAs) at reflection mode are studied using transfer matrix method.
采用传输矩阵法对反射模式下的微机电可调谐垂直腔半导体光放大器的波长调谐特性进行研究。
In order to demodulate optic fiber Fabry-Perot sensors multiplexed in parallel with high accuracy and absolute cavity length, an improved cross-correlation demodulation method is proposed.
为了实现光纤法-珀传感器并联复用信号的高精度、绝对腔长解调,提出了一种改进的互相关解调法。
An effective method for determining precisely the error or the emissivity of a cavity is given.
提供了一种能够精确确定腔体发射率误差的有效方法。
This paper discusses various factors which affect the dimensional torlerence of products of precise mould and offers a multi-object optimal method for designing cavity dimensions of precise mould.
综合考虑了影响精密型腔模具成型产品零件尺寸公差的各种因素,提出了模具成型尺寸的多目标优化方法。
On the other hand, simulate the interference fitting process to get the deformation distribution of the mould cavity by steel mould correlation method.
另一是用钢模比拟法对扁挤压筒预紧装配过程进行模拟,获得了挤压筒内孔型腔变形规律。
A wetness measurement system based on cavity perturbation method is designed for precise measuring, including automatic frequency tracing system and equal precision frequency measurement system.
以汽轮机内蒸汽湿度的准确测量为目的,设计了基于微波谐振腔微扰法的蒸汽湿度测量系统:自动频率跟踪系统和等精度频率测量系统。
To reveal the mechanism of karst collapse induced by groundwater pumping, the authors analyse the expanding condition of soil cavity by analytical method and put forward the concept of spalling force.
为研究人工抽水引起的岩溶地面塌陷的机理,用解析法分析了土洞扩展的条件,提出了剥落力的概念,认为土洞的扩展条件是剥落力大于土体抗拉强度。
So, machining the cavity is quite a task, in the paper we present a method for shaping the cavity with some special toolings on a simple special-purpose machine tool.
本文介绍了如何利用一些特殊的工装、刀具在简易的专用机床上加工该内型腔的方法。
Finally, by using this new method, flow in a 2-d lid driven cavity, flow around a circular cylinder, and flow simulation around NACA0012 airfoil with different Reynolds Numbers are performed.
最后,针对二维驱动空腔流、圆柱绕流及二维naca0012翼型在不同雷诺数的条件下,用新提出的方法进行了数值模拟。
The cutters used in high speed machining(HSM) have poor rigidity, therefore the method fits to HSM of die cavity due to the unfluctuating cutting force characteristic.
其切削力平稳的特性更适合于模具型腔的高速数控加工,可以克服高速加工用刀具刚性差的不足。
The problems of laser diode life test are introduced, and the integrating cavity scanning (ICS) method is given in laser diodes (LD) high-temperature accelerating life test.
介绍了半导体激光二极管(LD)寿命测试中存在的问题,并据此给出了LD高温加速寿命测试的积分球扫描法。
The paper analyses the action method, disturbance wave property and excitation condition of hydraulic independent excitation and theoretical model of fluid flow property in resonance cavity.
对水力它激的作用方式、扰动波特性、激励条件和共振腔内流体流动特性理论模型进行了较全面的理论分析。
The shortcoming of current slag cavity brick is presented . Its size is determined. The action of production method and gap ratio on its strength is studied in this paper.
文中提出了现行煤渣空心砖的不足,分析确定了煤渣空心砖的几何尺寸,研究了生产方法和孔洞率对煤渣空心砖强度的影响.。
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