短語詞組短語Schiff base -transition metal complexes Schiffbase過渡金屬配合物acid -base transition 酸堿轉(zhuǎn)換single base transition of dna dna 堿基顛換bis -schiff base transition mental complexes 過渡金屬配合物flexible transition base 柔性過渡層 返回 base transition