排序方式: 共有4条查询结果,搜索用时 140 毫秒
1
1.
介绍了国内外高等级公路工程中应用SST固化剂施工的基本情况,着重介绍自行开发的改性SST固化剂的改性技术、机理分析、工艺要领与工程质量数据,并作出了技术经济评估。 相似文献
2.
3.
Chemical composition of varnishes Vernis a Tableaux Vibert by Lefranc & Cie, Schutzfirnis für Oelgemalde Schmincke's Retuschier-Firnis by Schmincke & Co. Düsseldorf, Tempera-Firnis by Schmincke & Co. Düsseldorf, Bernstein-Gemaldefirniss für Ludwig'sche Petroleumfarben by Dr. Schoenfeld Düsseldorf, and Vernis Martin Pour Laquer by Lefranc & Cie Paris; oil medium Copal en pâte by Duroziez; essential oils Oleum Cupressi by Polak & Schwarz and Oleum Calami by Polak & Schwarz; fixative for charcoal, crayons, and pastels Nr 840/4 by Iskra & Karmański; and restoring medium for paintings Prof. Dr. Büttner's Phobus by Schmincke Düsseldorf were analyzed with gas chromatography–mass spectrometry. The analyses were conducted to obtain information about the exact composition of these products, which are stored at the National Museum in Krakow and were used by conservators. The results of research facilitate understanding of processes used in paintings and planning methods for their conservation. 相似文献
4.
1