helion

氦核, α粒子, α质点

词形变化

helions 复数

释义与例句

n.
  1. 1.

    Any helium ion, the nucleus of any helium atom.

    物理
  2. 2.

    Any helium ion, the nucleus of any helium atom.

    A helium-3 ion, the nucleus of a helium-3 atom. Formula: ³He⁺².

    氦核

    物理
  3. 1.

    A meteoroid that arrives from the approximate direction of the Sun.

    天文

词源

From helium + -on.

来源：wiktionary