1. Prior to the arrival of cold air, it is necessary to do a good job in keeping warm the tall crops. At present, there are many tall crops in the shed, such as tomatoes and cucumbers. Tall crops cannot be covered with small arch sheds, nor can they be covered with foliage. Therefore, it is recommended that two layers of film be prepared before cold air arrives.
2. For the lettuces and other vegetables currently in the shed, a layer of thermal insulation facilities is not safe enough, because they each have temperature requirements. Lettuce, lettuce, etc. stop growing below 5 ° C, and may even be frozen when the temperature reaches minus zero. Therefore, these vegetables can be used to maintain warmth according to their own facilities, such as adding small sheds and adding cover.
3. Sometimes it is raining and snowing, and the temperature is below zero, the vegetables in the shed are not easy to be frozen, but the frost damage is easy to occur in the weather after the rain is sunny or after the snow is sunny. Because the frost after the first clearing is particularly heavy, this kind of weather needs special attention. It is recommended to increase the cover during the first clearing.
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Pen Type IV Cannula needle is a medical device used to establish a venous channel for patients in the process of long-term intravenous infusion, chemotherapy, nutritional support, and other treatments, so as to facilitate the operation of infusion. It usually consists of a plastic tube and a needle inserted into a vein through the skin, and a tube connected to an infusion bag or Syringe to deliver drugs or nutrient solutions to the patient.
The advantages of the pen-type intravenous indwelling needle are that it can reduce the pain and discomfort of patients with repeated needle insertion, reduce the workload of medical staff and the risk of infection, and improve the treatment effect.
IV Cannula Price, 22g Cannula, 18 Gauge Cannula, Blue IV Cannula Needle
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