bis-

短语

[医] 二, 两个, 两次, 双

释义与例句

affix
  1. 1.

    An occasional variant of bi- prefixed to roots beginning with a vowel, as in bisalternate

  2. 2.

    A variant of di- used to indicate that the component that does not take the prefix occurs twice in the compound: a bisoxide is of the form B₂O (cf. dioxide for XO₂)

    废旧 化学
  3. 3.

    A variant of di-, used for substitutions of two complex rather than simple units.

    化学 数学

    Bis (η⁶-arene) metal complexes have been made for many transition metals by the Al/AlCl₃ reduction method.