例句與造句

1. Obsidian hydration dating was introduced in 1960 by Irving Friedman and Robert Smith of the United States Geological Survey.
2. Modern archaeologists have developed a relative dating system, obsidian hydration dating, to calculate the age of obsidian artifacts.
3. Obsidian hydration dating was introduced in 1960 by Irving Friedman and Robert Smith of the U . S . Geological Survey.
4. Obsidian hydration dating is a geochemical method of determining age in either absolute or relative terms of an artifact made of obsidian.
5. Obsidian hydration dating is a type of dating that uses the weathering rind that develops within artifacts or gravel that are composed of obsidian.
6. It's difficult to find obsidian hydration dating in a sentence. 用obsidian hydration dating造句挺難的
7. The use of Secondary ion mass spectrometry ( SIMS ) in the measurement of obsidian hydration dating was introduced by two independent research teams in 2002.