Technique of Diving

Technical essentials: sea submarine's need to learn: learning, including respiratory tubes and regulators to use, surface breaks method, emergency management and so on. Into the water before the preparation is very important! ! Personally check the equipment is functioning correctly, peer with each other between the re-check. Position in water: the front upright Diving - water depth required to more than 1.5 meters and feet before and after the opening, one hand holding down the face mask, hand strap according to the air cylinder. Turning its back to sitting in water - sat on the boat for the state, on his back back into the water. Front sitting in water - for beginners to use. Sideways into the water - and then roll the body lying on rubber boats float into the water. Potential drop: BC (buoyancy modem) Act - time buoyancy regulator, with a weight belt, his head at the foot of the potential drop. Without BC-Touxiajiaoshang. Increased: the increase in speed control in less than 18 meters per minute, it simply is not to exceed their own exhaled air bubbles rise velocity; Do not stop breathing; rise to see the rise of the water, you can specify the direction of his right hand stretched out, pay attention to the back, the body slowly rotation . The following patients not suitable for diving : a cold, nervous diseases, there is Er disease, heart disease, high (low) blood pressure, while drunk, and diabetes. The difference between snorkeling and scuba diving: scuba diving scuba diving refers to divers carrying oxygen cylinders, oxygen breathing through the barrel, long diving methods. Snorkeling and skin diving in the divers can hold one's breath underwater swimming time; until it can no longer hold your breath when the surface approach. Scuba diving rules: two peer-principle: two from the shore into the water to have to be together; coaches not be allowed to go ashore on their own companions; They always keep in touch. When placing an order to respond: to maintain calm, floating a few meters, looking for companions; can not be found on the surface, observe the bubbles. More than 10 minutes, still no traces of peers should be back into the water locations. Without the necessary, please do not kill animals in the water. Check residual voltage meter for every 10 meters margin. Several common gesture: I now in good condition --- "OK" Note that (object) direction --- "index finger to indicate direction," float --- "right fist, thumb up" dive --- "right fist, thumb to the Under the "ear pressure regulation for the first dive or dive time is not a long one, the water pressure would be people's ear canal, discomfort and even pain. At this point application of hand-pinch the nose, nasal forced to drum gas pressure inside the ear canal from the second to rise, to offset the pressure of the water. To dive, ear pain, should immediately go up, do not trying to flaunt