The original meaning of diving, and the new meaning?

new word

Basic explanation and detailed explanation

[Qian Shuǐ]

1. A kind of groundwater. Refers to the groundwater buried underground and above the first aquiclude. It can directly evaporate to the surface and get the infiltration supply of surface water, so the water level often changes with the season and climate. It is the main source of water supply for civil wells and shallow wells, but when the groundwater level is close to the surface, it will also cause soil salinization and swamp.

2. Jump into the water.

3. One of the sports. Athletes use underwater equipment, such as breathing tubes, breathing regulators, flippers, buoyancy regulators, gas cylinders, diving suits and so on. , all kinds of competitive competitions under water. There are webbed swimming, underwater hockey, underwater football, underwater target hunting, underwater photography and so on. There is also a diving depth competition under strict medical supervision.