• 基礎(chǔ)釋義
• 例句

• Butanedione as feed scenting agent may improve appetite and of animal, and increase efficiency of production. 丁二酮作為飼料香味劑,可增加動物食欲及采食量, 提高生產(chǎn)效率.
• Diels - Alder reaction of 2 - merhylene - 1 - pheny 1 - 1.3 - butanedione catalysed by zinc chloride as lewis acid with 1.3 - cylcopentadiene was reported. 以氯化鋅為路易斯酸催化劑,探討了2 ─ 亞甲基─1 ─ 苯基 ─ 1.3 ─ 丁二酮與1.3 ─ 環(huán)戊二烯的Diels─Alder反應(yīng).