Four-wired Nurse Call System
ETR Four-Wired Nurse Call System is designed for providing the communication
between patients in wards and medical personnel in nurses offices in
case of any peculiar conditions in hospitals,With cast-into-once deluxe plastic master telephone hosing, innovative summary fixed mode, complete information electronic summary and audio number reporting system.
Four-Wired Nurse Call System,Wireless Nurse Call System,Hospital Nurse Call Equipment,Hospital Nurse Call Station System Hunan Eter Medical Co., Ltd. , https://www.eter-tech.com
Spider culture technology
The spider's exoskeleton plays a role in protection, support, and exercise. On the other hand, the rigid exoskeleton restricts the growth of the spider itself. Therefore, a periodic "skinning phenomenon" occurs during growth. The increase in volume occurs during the gap time between the removal of the old epidermis and the replacement of the new epidermis. Before the spider removes the old epidermis, epithelial cells first secrete a new epidermis, which separates the original exoskeleton from epithelial cells (Figure 3-38). Epithelial cells also secrete ecdysis, which contains chitinase and protease. These enzymes enter the old inner epidermis through new epidermis and undergo digestion, decomposition and absorption. At the same time, epithelial cells begin to constantly secrete a new internal surface! Skin, at this time the spider actually has two exoskeletons on the body surface. Then, along the front centerline of the body, the old epidermis is torn open and the old exoskeleton removed. The new exoskeleton is still very soft, and the body relies on the air or water to increase the pressure in the body to extend the volume for maximum growth from resistance. The new epidermis then softens and hardens, forming a new exoskeleton, and continuously increasing the thickness of the epidermis.