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- 压缩C0半群contraction C0 semigroup
- C0半群C0 semigroup
- 双参数C0半群two-parameter Co semigroup
- 半semi-
- 半年half a year
- 半天half of the day
- 半小时halfhour
- 半角DBC case
- 阿贝尔半群Abelian semigroup
- 阿基米德半群archimedean semigroup
- 半群法semigroup method
- 半群环semigroup ring
- 半群性semigroup property
- 半群代数semigroup algebra
- 半群的零zero of semigroup
- 半群理论semigroup theory
- 半群态射semigroup morphism
- 半群同态semigroup homomorphism
- 半群的收敛convergence of semigroup
- 零半群zero semigroup
