| 释义 |
half-value period半衰期,半排出期half-value period半值期half-value period半化期half-value period半衰期双向☞ half life (period)--half-value period-- half period双向☞half life (period)-- half-value period-- half period双向☞ half-value period--half period-- half life(period)双向☞ ha |