查询词典 fiber-optic

Based on deep understanding on the relation between the properties of biconical fibers and the fusion temperature, a problem of fusion temperature monitoring is solved by means of a ceramic microheater and a fiber pyrometer. Effects of the fusion temperature on optical properties of biconical fibers are studied quantitatively. Biconical fiber devices with various filtering spectra are fabricated. Experimental results agree well with theoretical predictions.

根据对双锥光纤成形及光学特性与加热温度的深入理解，采用陶瓷管辐射加热和光纤高温传感新技术，解决了长期以来熔锥温度不易监测的关键技术难点，定量研究了熔锥温度对双锥光纤光学特性的影响，研制出多种具有不同滤波谱形状的双锥光纤器件，实验与理论模型预测的结果一致。

The numerical analysis model of fiber coupler in the process offused biconical taper is constructed successfully. The numericalanalysis of fiber coupler in the process of fused FBT is accomplishedwith finite element software.

建立了光纤耦合器熔融拉锥有限元计算模型，实现了光纤拉锥流变全过程数值仿真，可预测分析器件制造参数对流变制造过程的影响。7。

With the characteristic of small twist birefringence in single mode fiber an all fiber polarization measurement system is designed.

利用单模光纤扭转双折射较小的特征，设计了全光纤偏振测试系统。

The invention discloses a connecting city white duck blastodisk fiber cell system with connecting city white duck embryo as material with preservation number at CGMCC No.1877 in cellular biology domain, which is characterized by the following: the fiber cell does not possess epithelial cell with high purity; the quality of freezing cell is stable; the active ratio can reach between 93.5% and 96.8%; the passage growth is stable and fit for big scale culture.

本发明利用连城白鸭胚胎作为材料，进行初代培养、传代培养及细胞冻存等研究。最终获得高活率、高纯度的连城白鸭胚成纤维细胞系，其保藏编号为CGMCC No.1877属于细胞生物学领域。本发明培养的成纤维细胞无上皮细胞等，细胞纯度高；冻存后细胞质量稳定，活率可达到并维持在93.5％～96.8％之间，传代生长稳定，适合大规模培养。

The wool polyester soybean protein fiber are blent for making shirting fabrics combining characteristic of wool and soybean protein fiber .

结合羊毛和大豆蛋白纤维各自优良的性能，采用羊毛纤维，涤纶，大豆蛋白纤维混纺，开发出高档大豆蛋白纤维衬衣面料。

The effects of the interfacial bond strength,the embedded length of fiber and the thermal expansion coefficient on the fiber pullout process were studied.The results showed that the model ...

结果表明该模型能很好的解释纤维拔出的破坏过程，纤维的最大拔出力和材料的承载能力都随面结合强度、纤维的埋入长度和基体的热膨胀系数增大而增大；纤维与基体热膨胀系数的不匹配对摩擦拔出力有直接影响。

Fiber Bragg Grating is one of the most development optical fiber passive components in recent years.

光纤布拉格光栅是近年来发展最为迅速的光纤无源器件之一。

The research on large chirped fiber Bragg grating is an important part of researches about the fiber grating devices.

大啁啾光纤光栅的研究是光纤光栅器件研究中的一个重要组成部分。

In order to improve the high-performance concrete quality of longer brittleness, lower tensile strength, particularly the less descending branch in stress-strain curve compared with that of ordinary concrete. The breakthrough of this thesis lies in the mixture of short carbon fiber. Four factors such as water-binder ratio, volume ratio of short carbon fiber and blending value of high efficiency water-reducing admixture were selected as variable. Experiment was carried out by utilizing uniform design. Regression equation was established by regression analysis of the compression strength and the split tensile strength separately utilizing SPSS software. The process of optimization was obtained with the aid of MATLAB. Finally the optimized ratio was acquired.

为了改善高强混凝土由於水泥自缩、湿涨造成的脆性大、抗拉强度低，特别是应力－应变曲线的下降段不及普通混凝土的特点，本文以掺入短碳纤维为突破口，选取水胶比、砂率、短碳纤维的体积比、高效减水剂掺量四个因素作为变量，利用均匀设计安排试验，用SPSS软件对抗压强度和劈拉强度分别进行回归分析而得到回归方程，用MATLAB进行优化处理，进而求出最优配比。

The electropinning parameters (voltage, concentration and C-SD) influenced the mechanical properties of electrospun nylon 6 fiber mats. With increase of the solution concentration, the breaking stress and strain of the mat became large. The effect of C-SD was contrary. The nylon 6 fiber mat electrospun on the high voltage had low elongation but high strength.

静电纺尼龙6纤维毡的断裂强度和断裂伸长率随着浓度的增加都有增加的趋势；随着电压的增加，其断裂强度先减小后增大，断裂伸长率随电压增加而降低；断裂强度、断裂伸长率和断裂比功随着C-SD的增加都有减小的趋势。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。