gallium 的定义
Chemistry.
- a rare, steel-gray, trivalent metallic element used in high-temperature thermometers because of its high boiling point and low melting point. Symbol: Ga; atomic weight: 69.72; atomic number: 31; specific gravity: 5.91 at 20°C.
更多gallium例句
- For a start, power electronics are generally built from gallium nitride semiconductors rather than silicon.
- In 1875 Lecoq de Boisbandram discovered gallium, which filled one of the gaps; scandium and germanium filled the other two later.
- The Pierrefitte blende contains one part of gallium in four hundred thousand.
- A sulphate and a chloride of gallium have already been obtained.
- The new element was named gallium in honour of France, the discoverers native country.
- Gallium resembles lead in appearance, but is less blue in colour.