| 释义 |
carbon-dateCOCA³¹⁵¹¹¹⁺⁴BNC²³⁶²¹³⁺¹
基本英英近义反义
n.碳定年动词carbon-date
Noun:
a chemical analysis used to determine the age of organic materials based on their content of the radioisotope carbon-14; believed to be reliable up to 40,000 years近义词 carbon-14 dating放射性碳测定年龄…radiocarbon dating放射性碳测定年龄,放射性… |