promethium
美 [prə'mi:θiəm]
英 [prə'mi:θiəm] ![]()
英汉双解
1. | 钷(放射性化学元素)a chemical element. Promethium is a radioactive metal that was first produced artificially in a nuclear reactor and is found in small amounts in nature. |
英汉解释
n. | 1. 【化】钷 |
英英解释
n. |
例句
Promethium-
promethium (
钷(