Sodium gualenate was prepared from guaiazulene by using dioxane sulfur trioxide(D.
以愈创为原料,用二烷·三氧化硫加合
(D。
Sodium gualenate was prepared from guaiazulene by using dioxane sulfur trioxide(D.
以愈创为原料,用二烷·三氧化硫加合(D。
：以上例句、词性分类
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