boron isotopeの例文

例文

1. The boron isotope 10 B is responsible for the majority of the neutron absorption.
2. He developed the use of boron isotopes for determining the pH of ancient oceans.
3. Like all other elements, the elements of the boron group have radioactive isotopes, either found in boron isotope with the fewest neutrons and a enough to measure.
4. For example, the incidence of 18 O ( the heavy isotope of oxygen ) can be used as an indicator of polar ice sheet extent, and boron isotopes are key indicators of the pH and CO 2 content of oceans in the geologic past.