首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 15 毫秒
1.
2.
3.
4.
5.
6.
The preservation of historical works of artistic and cultural significance that are made of paper, wood, textiles, ivory, amber, and similar organic materials is difficult because of their rapid deterioration due to the action of light, humidity, temperature variation, or attack by fungi and insects. Based on the application of synthetic products, new techniques for the preservation of these materials have been developed in the last few years, which contribute to permanent protection.  相似文献   

7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
Die Riechschwelle des Seidenspinners   总被引:4,自引:0,他引:4  
  相似文献   

17.
18.
19.
20.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号