例句與造句

1. Electron spin resonance dating was first introduced to the science community in 1975, when Motoji Ikeya dated a speleothem in Akiyoshi Cave, Japan.
2. Speleothems found in the " Big Room " of Carlsbad were dated using electron spin resonance dating and were found to be 500, 000 to 600, 000 years old.
3. "' Electron Spin Resonance Dating, "'or ESR dating, is a technique used to date newly formed materials, which Radiocarbon dating cannot, like carbonates, tooth enamel, or materials that have been previously heated like igneous rock.
4. The research team, including scientists from China, the United States, Canada and the Netherlands, used three different methods to establish the early dates of the tools and remains : changes in Earth's magnetic field, comparison with the collection of animal fossils found in the same layers of the cave sediments, and sophisticated electron spin resonance dating of an animal tooth from a higher layer in the cave.
5. It's difficult to find electron spin resonance dating in a sentence. 用electron spin resonance dating造句挺難的