照相的

PET recycling in the photographic film industry; recycling of PET containers; recycling post-consumer; greenhouse polyethylene films by blending with polyamide; recycling of plastics from urban solid wastes; technical and economic management of plastics wastes; blends of polyethylene and plastics waste; techniques for sorting and recycling post-consumer plastics bottles; hydrolytic treatment of plastics wastes containing paper; technologies for processing mixed plastics wastes; use of recyclable plastics in motor vehicles; ground tier rubber polymer composites; and quality assurance in plastics recycling.

塑料的再循环プラスチックのがまた循環します在照相胶卷工业里的宠物再循环；宠物集装箱的再循环；再循环消费者后；通过用polyamide调和的温室聚乙烯电影；来自都市的固体废物的塑料制品的再循环；塑料制品的技术和经济管理浪费；聚乙烯和塑料制品的混合物浪费；分类和再循环消费者后塑料瓶子的技术； hydrolytic 处理塑料制品浪费包含纸；为处理混合的塑料制品的技术浪费；使用在机动车里的可再造的塑料制品；地排橡胶聚合物混合物；以及用塑料再循环的质量保证。

Microscopic characteristics of cladded crystal fiber are analyzed by X-ray diffraction, Laue X-ray diffraction and scanning electron microscopy, it is found that magnesium-ion indiffusion does not affect the single crystal structure and the domain structure of the magnesium diffused crystal fiber. It is found for the first time that MgO-rich layer in the magnesium diffused LiNbO〓 surface layer exhibits the crystal structure of an unknown compound from the Li-Mg-Nb-O ternary system and MgNb〓O〓. It is proposed for the first time that this unknown compound and MgNb〓O〓 in MgO-rich layer are the real sources of magnesium-ion indiffusion LiNbO〓. Their appearance indicate that MgNb〓O〓 is in the surface layer of MgO-rich layer, the unknown compound is in the subsurface layer and beneath where the MgNb〓O〓 is located, and these compounds have obviously preferred orientation.

通过镁离子内扩散法，首次在国内实现了具有阶跃和抛物折射率分布的c轴LiNbO〓单晶光纤和a轴Nd：MgO：LiNbO〓单晶光纤的芯—包层波导结构，为我国在该项目的研究填补了空白；建立了晶纤损耗的测量系统，提出了利用单模石英光纤作为晶纤入射光耦合器的思想；通过对晶纤损耗的测量，得到了包层晶纤比未包层晶纤损耗降低约14倍的好结果，并实现了低次模传输：对经镁离子内扩散实现包层后的晶纤的微观特性，利用X射线衍射，劳厄照相和扫描电镜表征发现，晶纤并不因镁离子的内扩散而影响其单晶结构和镁的扩散层畴的变化。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。