During reconstruction or removal of a road surface, reclaimed asphalt pavement (RAP) is commonly obtained by milling or removing the. existing pavement. For this study, reclaimed asphalt pavement (RAP) is defined as all. asphalt road waste, large chunks or milled material, that has been size-reduced, making it. reusable as part of a new asphalt mixture. Reclaimed asphalt pavement has been successfully re-used and recycled for many.
The eartubes are the metal/steel parts of the stethoscope that connect to the eartips and the synthetic/PVC tubing, which connects to the stem of the chest-piece. The eartubes are designed to to isolate and transfer sound to the users ears with minimum quality loss.
Then, when you see them at the doctor's office, you will know what they are used for and how they are used. At your checkup, you can ask the doctor or nurse questions about the instruments and can ask to touch them. Stethoscope. The doctor uses a stethoscope (steth-o-scope) to listen to your heart and lungs and make sure they are healthy. He or she will place a small metal circle, called a bell, against your chest, at the spot where you can feel your heart beating. This special bell does not make noise. It allows the doctor to listen carefully to your heartbeat and your breathing. Sounds travel from the bell, through a rubber tube, and into the doctor's ears. The doctor may move the bell around on your chest and ask you to take deep breaths while he or she listens to your lungs. Some kids ask the doctor to let them listen to their own heartbeat or the doctor's heartbeat through the stethoscope.