main group

短语

[化] 主族

词形变化

main groups 复数 main groups

释义与例句

n.
  1. 1.

    In the periodic table of the elements, any of the eight groups (columns) of elements in the s and p blocks.

    化学
  2. 2.

    The same, plus the elements of group 12.

    过时 化学