| 单词 | protomoon |
| 释义 | Definition of protomoon in English:protomoonnoun Astronomy
Origin1950s; earliest use found in Proceedings of the National Academy of Sciences of the United States of America. Definition of protomoon in US English:protomoonnoun Astronomy
Origin1950s; earliest use found in Proceedings of the National Academy of Sciences of the United States of America. |
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