| 释义 |
Definition of geoid in English: geoidnoun ˈdʒiːɔɪdˈdʒiɔɪd the geoidA hypothetical solid figure whose surface corresponds to mean sea level and its imagined extension under (or over) land areas. Example sentencesExamples - The geoid is a hypothetical surface, on which the gravitational pull of the Earth is the same everywhere.
- ‘We live on the crust, so we don't really notice the deviation from what would be sort of the normal form of the geoid,’ he said.
- The seven-year odyssey transformed the world in earnest by giving to science a new form for the globe - that irregular spheroid today called the geoid.
- To this end we used an integrated modelling technique that combines several regional geophysical observables (elevation, gravity, geoid and heat flow) with available seismic data.
- ‘Now, we're ready to look at how the geoid varies over short periods of time,’ he adds.
Origin Late 19th century: from Greek geoeidēs, from gē 'earth' + -oeidēs (see -oid). Definition of geoid in US English: geoidnounˈdʒiɔɪdˈjēoid the geoidThe hypothetical shape of the earth, coinciding with mean sea level and its imagined extension under (or over) land areas. Example sentencesExamples - To this end we used an integrated modelling technique that combines several regional geophysical observables (elevation, gravity, geoid and heat flow) with available seismic data.
- The seven-year odyssey transformed the world in earnest by giving to science a new form for the globe - that irregular spheroid today called the geoid.
- ‘We live on the crust, so we don't really notice the deviation from what would be sort of the normal form of the geoid,’ he said.
- The geoid is a hypothetical surface, on which the gravitational pull of the Earth is the same everywhere.
- ‘Now, we're ready to look at how the geoid varies over short periods of time,’ he adds.
Origin Late 19th century: from Greek geoeidēs, from gē ‘earth’ + -oeidēs (see -oid). |