At the same time, the coexistence of electron-donating atoms and electron-accepting atoms will produce a synergistic effect, which greatly increases the active c atoms.
At the same time, the coexistence of electron atoms and accepted electron atoms will produce synergistic effects, greatly increasing the active c atoms
At the same time, the coexistence of donor and acceptor atoms will produce synergistic effect, which greatly increases the number of active C atoms<br>