Pressure of the water samples more often want to change 2 to 3 times a day, once a day can be changed after the third day, you can change a few days later, until dry. Case of rainy weather, the specimen is easy to mold, change the paper more important. The first few pay attention to shaping the folds of leaves, flowers spread Changsha herbarium specimens, demonstrating the main features. Should be promptly replaced the wet paper dried or drying. Drying heat exchange with the paper better. When you want to change the paper gently, first remove the specimen on wet paper, put on a few dry paper, then pressed a hand specimen above dry paper, the other hand, hold the specimens under wet paper quickly Flip herbarium specimens, and the dry side of the paper turn under, on top of a wet paper turn, then remove the wet paper, put on dry paper, thus reducing the specimen movement, to avoid damage. Storage herbarium specimens of an insecticidal specimens collected in the field, often with insects and eggs, over time, insect breeding, the specimens were chewed, it must be carried out before storage insecticide. Smoked with carbon disulfide to kill pests or other drugs insecticidal preservative. 2. Storage: The specimen cabinet specimen in Wuhan herbarium specimens, to make the air flow, fire proof Sichuan herbarium specimens, specimen cabinets in the case of multi-units, each belongs to a genus sets of cards at the door outside write the name of the cabinet specimens of species in order to query. Herbarium of the Baptist system for those soft and juicy, plant material after drying or drying easy deformable, the use of immersion method of making specimens. Baptist system processes including fixed and saved two steps, depending on the color of the plant material can be different production methods; ① green specimens production. The material is washed and immersed in greenery 5% copper sulfate solution until the material changes from green to yellow and then from yellow to green. Wash the material can be removed at this time, and then dipped in a 5% formalin solution saved. Wuhan herbarium specimens _ _ voyage teaching herbarium specimens provided by Xinxiang City Teaching Equipment Co. voyage. Xinxiang City voyage Teaching Equipment Co. (www.xxyuanhang.cn) (www.yuanhang369.com) strong, credible, in Xinxiang specimen model industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the voyage into the brilliant teaching and you work for a better future! You can also access (www.yuanhang369.com/supply_details_38634690.html), for more information about the company.