The coolness of autumn began to deepen, but the decoration was "hot". Experienced people all know that there are many benefits in the autumn decoration, such as dry weather, wood boards are not easy to return moisture, paint, paint, etc., but there are also some unique decoration sequelae. Today, the reporter introduced some relevant knowledge to consumers on the issue of wall decoration. Error demonstration one: Indoor tasteless immediately stay The decoration smell that is not overly heavy is only caused by the low temperature in the autumn. This kind of illusion will gradually be exposed with the start of heating in winter. When the indoor temperature rises, various harmful gases will volatilize and become active. The indoor space is completely polluted. The air seriously affects the health of the decoration owner. Therefore, even if there is no taste after the renovation, you must wait for two months to one month to stay again, but also pay attention to the morning and evening window ventilation. Error demonstration two: Wall cracking immediately repair As the weather is dry and the temperature changes frequently, the volatilization of water and the shrinkage of wall materials will cause varying degrees of wall cracks and crevices. These are the normal physical changes of the decorative materials. The cracking of the wall indicates that the water is evaporating and it may continue to volatilize. Even if it is repaired, the wall will continue to crack. In the autumn, you should be careful not to worry about retreat. You should wait until next spring to renovate as necessary. Error demonstration three: Air-drying paint or wallpaper In the summer, when home painting is used to paint or paste wallpapers, doors and windows are generally opened to allow the walls to dry in a short period of time. However, if you open doors and windows in the autumn, because the weather is already dry, the walls will dry faster, and due to the rapid loss of water, there may be shrinkage and deformation. Therefore, you should keep windows and doors closed in the paint or paving wallpaper for 1 to 2 days, or ventilate only in the morning and evening, but always keep the walls dry naturally. In addition to dryness, even wallpaper should be replenished, so before you put it on, you must first soak it in water and then brush it. Wall construction window wallpaper coating interior decoration home decoration
The cover glass is covered on the material on the glass slide, which can avoid the contact between the liquid and the objective lens, so as not to contaminate the lens, and can make the top of the observed cells in the same plane, that is, the distance from the objective lens is the same, so that the observed Images are clearer.Why do you need a coverslip when using a microscope
The purpose of staining the specimen with iodine solution is to make the cells more obvious under the microscope, and it can also kill the cells and prevent the cells from migrating.
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2. Make the specimen relatively fixed;
3. It is convenient to use the capillary phenomenon to form a gradient when adding various reagents (staining agent, acid, salt solution);
4. Avoid contamination of the specimen.
Autumn wall decoration should pay attention to carefully exclude artifacts