Therefore, measurement of mode field diameter of single mode fibers by far-fi...
实现了用远场掩模法对单模光纤模场直径的测量。
Optical fibres - Part 1-45: measurement methods and test procedures - Mode field diameter.
光纤。第1 - 45部分：测量方法和试验规程。模场直径。
Therefore, measurement of mode field diameter of single mode fibers by far-field mask is realized.
实现了用远场掩模法对单模光纤模场直径的测量。
This paper discusses a method of continuous variable aperture(CVAFF)to measure the mode-field diameter(MFD)in single-mode fibers.
本文讨论一种用于单模光纤模场测量的连续变孔径方法。
In this paper, the relation between the dipersion formula, the waveguide dipersion and the mode field diameter is derived, based on the scale wave equation.
本文根据标量波动方程，导出了色散公式及波导色散和模场直径间的关系。
In this article, the influences of the mode field diameter, the cutoff wavelength and the relative refractive index difference on the OTDR curve are also verified.
文中还验证了单模光纤的模场直径、截止波长、相对折射率差对OTDR曲线的影响。
In the field operation, can cause annealed wire diameter necked, surface scratch, red copper wire, copper wire color, copper wire oxidation and so on some phenomenon.
在现场操作中，会造成退火后线径变细、表面划伤、铜线发红、铜线变色、铜线氧化等一些现象。
Based on the field loading tests and FEM numerical simulation analysis, the paper probes into the potential bearing capacity of large diameter and super-long bored-cast-place piles.
基于入和没入硬层时有限元数值模拟对比分析和持力层不同时同场地现场对比试验资料分析，对大直径超长灌注桩的承载潜力问题进行了探讨。
During the treatment of a particle field the effect of particle diameter, specific weight, rigidity of material and friction factor, etc on particle movement has been taken into account.
在处理颗粒场时考虑到颗粒直径、比重、材料的刚度、摩擦系数等对颗粒运动的影响。
By microwave designing for substrate heating materials, the larger uniform temperature field areas than the diameter of substrate holder in MPCVD device is obtained.
通过对基片加热材料的微波设计，在MPCVD装置中获得大于基片台直径的均匀温度分布区。
In the greenhouse, by conducting pot and field experiments, the diagnosis method of crop moisture content from variable differential in stem diameter of tomato was studied.
在温室条件下，盆栽和小区试验相结合，进行了用番茄株茎直径变差法诊断其水分状况的试验研究。
Ratio of height and diameter, crown and root, of root cutting seedling were strong with more fibrous root, and higher rate of fungus root infection than untreated normal field seedlings.
切根苗的高径比与冠根比均在壮苗的适宜范围内，须根数量多，菌根感染率高，均明显优于未切根的普通大田亩，这将有效地提高造林质量。
The overall characteristics of flow field are analyzed and various influences of nozzle diameter on the downhole flow field of PDC bits are obtained.
分析了流场的总体特点，得出了喷嘴孔径对PDC钻头井底流场的各种影响。
The paper briefly described the design, construction technology and application effect of combined application of small diameter steel tube pile and consolidation grouting with field cases.
以工程实践为例，简述复杂岩溶地基处理中小口径钢管桩与固结灌浆技术联合应用的设计、施工工艺及应用效果。
At last, as the example of squeeze casting with large ratio of height to diameter, the temperature field and stress field of high-leg casting were simulated and analyzed.
最后，以高脚杯形挤压铸件作为大高径比挤压铸件的实例，对其挤压铸造过程中的温度场和应力场进行了模拟和分析。
The study was made for using small diameter logs and wood-processing residuals to develop new products and their application field.
针对小径材与木材加工勤余物的利用和开辟产品应用领域的问题，进行了该课题的初步研究。
The paper discusses the design program of the production process for large diameter impregnated diamond bits, which offers a reference for people in this field.
本文详细介绍了生产大口径孕镶金刚石钻头的工艺设计方案，值得同业借鉴。
Each pole stands on a pedestal 176.3mm in diameter installed on the floor of the Field.
每个竖杆都插在安放在场地上直径为176.3mm的圆柱基座上。
The dependence of the ac loss of coil-type samples on the peak value of magnetic field, magnetizing frequency, pitch of materials, matrix and diameter of filament were obtained.
得出了线圈型样品交流损耗与峰值磁场、励磁频率，材料扭矩，基体材料，细芯直径诸量间的依赖关系。
There isn't a consistent conclusion about how to ensuring water pipe diameter in relate field.
在规划的什么阶段确定管径，一直众说不一。
The field application indicated that the lifting liquid viscosity, pumps the diameter are key factor influencing lifting capacity of oil extraction system of non-tubing.
现场应用表明，举升液体粘度、泵径是影响无油管采油系统举升能力的关键因素。
Experimental study on the physical phenomenon of the fire whirlwind temperature field by infrared thermography, . the height of the fire whirlwind is more greater than the fire whirlwind diameter.
应用热成像方法获得了火旋风特有的物理现象，火焰的大高度直径比；
A positive displacement variable diameter stabilizer was developed in China, and its field tests and real drilling applications in Well QHD32 6 A26 was presented.
并介绍了国内自行研制的正排量变径稳定器在QHD 32 -6 - A 2 6井的现场试验和实钻应用情况。
The search for a nonthrombogenic material with the potential for use in small diameter vascular graft applications continues to be a field of extensive investigation.
不凝血材料在小直径血管支架领域具有很大的应用潜力。
Through a high-potential electric field the liquid drop will disperse into uniform micro-diameter spray droplets.
液滴在高压电场的作用下将分散成粒径细小的均匀雾滴。
The deep well coal road cable of small diameter hole and high pre-tension structure and craft were studied according to the condition of high stress and composite roof in Fengcheng coal field.
结合丰城矿区高地应力、合顶板等复杂地质条件，研究深井条件下煤巷锚索采用小孔径、加高预应力的结构形式和施工工艺。
Moreover the trajectory distribution of inclusions is influenced by the diameter of inclusions and by the magnitude and position of the magnetic field.
非金属夹杂物的直径、磁感应强度的大小及磁场的位置影响非金属夹杂物的运动轨迹及分布。
Moreover the trajectory distribution of inclusions is influenced by the diameter of inclusions and by the magnitude and position of the magnetic field.
非金属夹杂物的直径、磁感应强度的大小及磁场的位置影响非金属夹杂物的运动轨迹及分布。
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