benzene formula

常见例句

• The formula of the medicine is still a secret.
  此药的配方仍是秘密。
• "How do you do?" is a polite formula.
  "您好。"是客气的套语。
• centric benzene formula
  向心苯式
• It was Hart who created the basic formula of the western film.
  正是这个哈特创造了西部电影的基本格局。
• Having a ring composed exclusively of carbon atoms, as benzene.
  碳环的有一个仅由碳原子组成的环的，如苯
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