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在中学化学教学中,对于乙炔、乙烯分子结构及其化学性质,用经典的价键理论似乎难于说明,而用分子轨道法,则较易得到完善的解释。
In chemistry teaching in middle schools, it seems difficult to explain the classical valence bond theory for the molecular structure and chemical properties of acetylene and ethylene, while the molecular orbital method is easier to explain.