2. touching the ground; landing (an airplane)
3. Ground (electricity)In electrical engineering, ground or earth is the reference point in an electrical circuit from which other voltages are measured, or is a common return path for electric current, or a direct physical connection to the Earth. Electrical circuits may be connected to ground (earth) for several reasons. In mains powered equipment, exposed metal parts are connected to ground to prevent contact with a dangerous voltage if electrical insulation fails.
Read “Ground (electricity)” on English Wikipedia
Read “接地” on Japanese Wikipedia
Read “Ground (electricity)” on DBpedia
Read “Ground (electricity)” on English Wikipedia
Read “接地” on Japanese Wikipedia
Read “Ground (electricity)” on DBpedia
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