更多monovalent例句

1. Other trials, to begin in the fall, will study a monovalent vaccine that has a gene only from the Zaire strain.
2. For the sake of simplicity we can assume that these ions are all monovalent.
3. It is not possible, therefore, that condensation can take place if the atoms remain monovalent.
4. Similarly, a trivalent atom, such as that of Nitrogen, can unite with three monovalent atoms.
5. Monovalent atoms are those which can, under no circumstances, unite with more than one other atom.
6. A tetravalent atom, such as that of Carbon, can combine with four monovalent atoms.