The article describes the general theory of polymeric optical fibers(POF),especially plastic optical fibers,and material varieties、technology of synthesis and manufacture of POF,Also discuss the future development directions.
本文介绍了高聚物光纤（ＰＯＦ），特别是塑料光纤的基本理论，以及ＰＯＦ材料种类、合成与生产工艺，并提出将来的发展方向。
The number of materials, which are available to the engineer in industry, is almost infinite.
工程师能够用于工业的材料种类几乎是无限的。
Numerous materials are available to today's designers.
现在可供设计人员采用的材料种类繁多。
Influence of Materials on Residual Stress in Sandwich Injection Molding Process
材料种类对夹芯注射制品残余应力的影响
Today the plastics industry produces a vast range of materials.
现今塑胶工业生产种类繁多的材料。
Wood, coal, oil and gas are different knids of fuel.
木材，煤，油和天然气是不同种类的燃料。
any of various synthetic materials that resemble rubber.
任何一种类似天然橡胶的合成材料。
Insulating materials of this type are in two forms.
这类保温材料有两种形式。
The kinds, application and preparation method of nano scale materials are introduced.
介绍了纳米材料的种类,应用及制备方法。
We have prepared over 200 kinds of such materials for use in primary schools.
我们编写了200多种这类材料供小学使用。
We produce some first-class materials for those industries.
本公司生产数种一流材料以供应那类工业。
Primary Analysis on Genetic Diversity of Different Types of Alfalfa Varieties (Germplasm);
不同类型苜蓿品种（材料）遗传多样性的初步分析
Analysis of Genetic Diversity of the Germplasm Materials in Brassica Rapa;
白菜类作物种质材料的遗传多样性分析
Identification of Nematode Species of Genus Bursaphelenchus from Packing Wood Materials;
进境木质包装材料中伞滑刃属线虫的种类鉴定
Study on the Preparations and Applications of Several Important Zeolite Materials;
几种重要沸石类材料的制备与应用研究
Principal Component and Cluster Analysis on Introduced Strains of Lentinus giganteus
大杯香菇引种材料的主成分和聚类分析
Study on the clinical effects of 3 kinds of materials restored V type cavities of the elderly
三种材料修复老年患者V类洞的疗效分析
Category of Epoxy Resin Grouting Materials and Its Application
环氧树脂灌浆材料的种类及其在工程中的应用
Study on Influence of Filling Material Types and Dosage on the Mechanical Properties of PA6
填充物种类和用量对PA6材料力学性能的影响