查询词典 chemical fiber

The results indicate that the addition of any fiber increase the mechanical performance of concrete, and the reinforcing degree of sisal fiber is similar to that of polypropylene fiber.

结果表明：与基准混凝土相比，掺有纤维的混凝土的力学性能均得到提高；而经过改性处理后的剑麻纤维具有相似于聚丙烯纤维的增强效果。

A new type fiber coupling system is designed,which consists of four parts:large aperture lens,1/4 pitch grin lens,taper fiber and step optical fiber with spherical end surface.

设计了一种新型的耦合系统，该耦合系统由大口径聚焦透镜、1/4节距自聚焦透镜、锥形光纤和球端光纤四部分组成。

Based on the spinneret holes,spinning liquid, spinning technology ,it analyzed the influence of these factors to the fiber profiles,fiber performances and the use of profiled fiber.

文章从喷丝孔形状、纺丝液性质、纺丝工艺条件等方面分析了这些影响因素对纤维截面、纤维性能及纤维用途的影响，并以几种典型异形纤维为例阐述了不同截面纤维的用途，指出异形纤维是具有广阔前景的一种差别化纤维。

After the modification of process flow and transform of equipment, the line was to produce both PET hollow fiber and conventional staple fiber, enhancing flexibility of product development and increasing the ratio of differential fiber.

经过工艺流程和设备的改造，装置具备开发生产中空短纤和常规短纤系列产品的能力，增加了装置品种开发的柔性，提高了品种差别化率，从而实现在原装置的基础上创造新的效益增长点的目的。

The calculative results show that the efficient thermal conductivity rises as temperature rises under a constant fiber volume fraction, and it is proportional to the third power of absolute temperature; it decreases as fiber volume fraction increases under high temperature; it increases as fiber volume fraction increases under low temperature, and it is in agreement with that is described in the literature.

此式计算结果表明：在纤维体积分率一定时，其有效导热系数随温度的升高而升高，且它是绝对温度的三次方关系；在高温条件下，其有效导热系数随纤维体积分率的升高而四川大学硕土学位论文有减少趋势；在低温条件下，其有效导热系数随纤维体积分率的增大而增大，与所查文献描述规律一致。

The transmission spectra of fiber Bragg grating in photonic crystal fiber and conventional fiber are compared.

比较了光子晶体光纤中布拉格光栅与常规布拉格光栅的传输谱。

With given parameters of the fiber grating, the transmission spectrum of the long-period fiber grating was obtained by simulation with Matlab. As a result, the position of the resonant wavelength of the long-period fiber grating is decided by the grating′s period. The attenuation changes with the length and refractive index of the grating.

在设定的光纤光栅参数条件下，通过Matlab进行模拟得到了最终需要的长周期光纤光栅透射谱，并由此得出：长周期光纤光栅谐振波长出现的位置主要由光栅的周期决定，损耗大小可以通过调节光栅长度和折射率来实现。

Beginning with wave equation, the paper has deduced the propagation of gauss pulses in single mode fiber and fiber grating transmission compensation. The characteristics of cascaded phase-shift gratings are discussed by numerical simulations of coupled-mode theory and T-matrix method. The experimental works and measurement results are shown in this paper. On the other hand, we have introduced the basic theory of EDFA and figured out the characteristics for EDFA at different conditions by numerical simulation. Some experimental results for EDFA are also presented here. In this article, you can find the influence on Optical Fiber Amplifier by Gain Tilt, especially, the negative effect on CSO in CATV transmission system.

论文首先从波动方程入手，对高斯脉冲在单模光纤中的传播演化及光纤光栅透射补偿进行了详细的研究；较系统地介绍了光纤光栅的耦合模理论，并将传输矩阵计算法用于计算级连相移光纤光栅的光学特性；重点介绍了作者在光纤光栅刻制及特性测量方面所做的一些实验研究工作；较系统介绍了EDFA的基本理论，计算出各种条件下EDFA的光学特性，并进行了一些实验研究；综合分析光纤放大器对光纤传输系统的影响，特别分析了光纤放大器增益不平坦对光纤CATV系统中CSO恶化的原因及其解决方法，并研究了光纤布拉格光栅在稳定980nm泵浦源输出功率和输出波长方面的应用；结合一个基于光纤光栅和光纤放大器的光纤用户接入网方案，对光纤用户接入网的若干问题进行了理论与初步的实验研究。

Division I provide a full range of composite materials products, including: Carbon Fabrics (1K, 3K, 6K, 12K-Plain, Twill Fabrics), Hybrid-Carbon Fibrics, Carbon AND Kevlar Hybrics、Carbon Fiber Pre-preg, Fibreboard and Carbon Sheet, PU leather Carbon Fiber (bags, purses, gloves, Shoes only), Plated Colorized Glass Fabrics (1 K, 3K-Plain, Twilled),Glass Fibreboard, PU leather glass fiber , Imitation Black and White Plain Fiberglass (1 K, 3K, 6K), Kevlar Fibrics, Nomex Honeycomb.

我司提供全面的复合材料产品，包括：碳纤维布（1K、3K、6K、12K平、斜纹、3K斜纹单面定型布专业使用于汽车大包围）、碳纤维混编织玻纤布、碳纤维混编织凯芙拉布、碳纤维预浸布、碳纤维板及片材、PU碳纤维皮革（箱包、钱包、手套、鞋专用）、彩色电镀玻璃纤维布（1K、3K平、斜纹）、电镀玻璃纤维板，PU玻璃纤维皮革、仿黑白编织玻纤编织布（1K、3K、6K）、凯芙拉编织布、Nomex纸蜂窝。

By comparing of different treating methods of wood-fiber: treated with silane coupling agent, NaOH solution and silane coupling agent, grafted by poly, it can be found that grafted wood-fiber evenly distributed in PVC matrix. Grafted wood-fiber and PVC matrix had a better interfacial compatibility than that of the ungrafted wood fibers, which was verified by scanning electron microscope observation.

比较了硅烷偶联剂处理、氢氧化钠溶液浸泡与硅烷偶联剂双重处理，接枝改性等3种木纤维表面处理方法对木纤维／PVC复合材料界面及性能的影响，通过扫描电镜照片发现接枝改性木纤维在PVC基体中分散更均匀，与PVC界面相容性好。

The shaping method of noncircular part and the tool holder's radial motion characters in noncircular turning process are discussed in detail in the thesis.

论文详细研究了非圆零件的成型方法和加工过程中刀架的径向运动规律。

I have not really liked him,I do not like his this kind of disposition.

我没有真的喜欢他，我不喜欢他的这种性格。