obsidian dating造句

例句与造句

1. Among his methodological contributions, Green was well known for his work on obsidian dating and provenance, an invaluable tool in Pacific archaeology.
2. The water vapor creates a " hydration rind " in the obsidian, and so this approach is known as " hydration dating " or " obsidian dating ", and is useful for determining dates as far back as 200, 000 years.
3. It's difficult to find obsidian dating in a sentence. 用obsidian dating造句挺难的