The greenhouse film plays a role in keeping vegetables warm, shade, moisturizing, and preventing pests. So how can we reasonably use the film to prolong its service life? First, the seam is too narrow The greenhouse membrane is composed of a plurality of narrow membranes, and the bonding area is increased to increase the bonding strength. If the seam is too narrow and the bond area is small, it will cause a seam when pulled hard. Second, press the film with thread After the large shed is covered with a film, it should be immediately pressed with a lamination line. Generally, one lamination line is pulled every 1-2 scaffolds, and the elasticity of the line should be moderate. Simultaneously, a simple windbreak is set on the windward side. Otherwise, the thin and light film of the greenhouse can easily be blown under the strong winds of the winter and even be blown up by strong winds. Third, the film damage to repair The film is easily damaged during use and storage, and the temporary repair method can be used for damage during use: 1. Water supplement method. Scrub the damaged area, cut a thin film that is slightly larger than the damaged area, and put a piece of water on the hole, drain the air between the two films, and press the flat. 2. Paper method. The agricultural film is slightly damaged. After the paper is wetted, it is affixed to the damaged part. Generally, it can be used for about 10 days. 3. Pasting method. Use white flour and add water to make a paste, add brown sugar equivalent to 1/3 of the weight of dried flour, and apply it to the film after heating it slightly. 4. Rubber repair method. Clean the hole around the hole and apply it with a brush and special glue. After 3-5 minutes, take a piece of film with the same texture and stick it on it. After the glue is dry, it can be fastened. After the shed is removed, permanent repair must be used. The thicker film is damaged and can be covered with a film of the same texture and connected with a thin line. Can also be washed at the damaged area, with a slightly larger film to cover the hole, and then 2-3 layers of newspapers, with iron gently ironing along the interface, the two films were heated paste, after cooling will stick to Together, this method is called hot patching. IV. Digging pits when it is disabled During the collection period, the film must be protected from exposure, smoke, and fire. Otherwise, its service life will be greatly reduced. Practice has proved that the best way to collect thin films is to dig pits. After the production of greenhouses is completed, the removed film should be washed and dried first, folded or rolled up, wrapped in old film, and a hole should be dug in the place where the dryness of the soil is moderate, and then the wrapped film is placed in the pit for burying. Note that the distance from the upper layer of the film to the ground should be more than 30 cm. This method can prevent the storage of the agricultural film in the air due to aging, and shorten the service life. Innovative jet embedded nylon technology maximizes the efficiency of sample collection from patients. Nylon adheres vertically and evenly to the surface of the swab tip, improving the efficiency of cell and liquid sample collection and release. Increased analytical sensitivity, no specimen residue, and accelerated specimen processing. Flocked Swab,Collect swabs from specimens with flocked tips,Medical sampling swab oral nylon swab flocking,Acts in the clinical diagnosis Jiangsu iiLO Biotechnology Co., Ltd. , https://www.iilogene.com