RI [化] 放射性同位素
ri[ noun ]
a state in New England; one of the original 13 colonies; the smallest state
<noun.location>
- The RSC has this 12 months' leeway. Heralded at the time as the biggest arts sponsorship ever, the link has undoubtedly helped both parties, but especially RI, which has raised its profile and had marvellous entertainment opportunities.
- A new entity, RI Acquisition Co., would become the parent of Resorts.
- Unlike the BA, the RI does some research in its own laboratory.