例句
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Acetylsalicylic acid was synthesized from salicylic acid and acetic anhydride catalyzed by strong - acid cation exchange resin.
以水杨酸和乙酸酐为原料、强酸阳离子交换树脂为催化剂合成阿司匹林.
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How long is acetic acid methyl progesterone movie menstruated for by?
醋酸甲基孕酮片吃多久来月经?
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Examples of fixatives are formaldehyde, osmium tetroxide, ethanol, and acetic acid.
像甲醛 、 锇酸 、 酒精及乙酸等都是常用的固定剂.
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The invention relates to a methacrylic acid ester antiseptic, a preparation method and a purpose thereof.
本发明涉及一种甲氧基丙烯酸酯类杀菌剂 、 制备方法及用途.
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The content of gibberellin ( GA ) and indole - 3 - acetic acid ( IAA ) in the young - shoot - tips of litchi ( Litchi chinensis Sonn. )
荔枝 ( Litchi chinensisSonn. ) 嫩梢顶端的赤霉素 ( GA ) 和吲哚乙酸 ( IAA ) 含量很高,叶片转绿、梢老熟时明显降低,以后才开始花芽分化.
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The kinetics of esterification of linalool with acetic anhydride was studied.
研究了芳樟醇与乙酸酐酯化反应动力学.
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Ingredients: Sea Salt, Jojoba ester, lavender essence, pigment , frankincense.
成分: 海盐, 霍霍巴脂, 薰衣草香精, 色素.
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Triisodecyl phosphite ester is synthesized with isodecyl alcohol and PCl _ 3 by using the direct esterification method.
由异癸醇和三氯化磷反应制得亚磷酸三异癸酯.
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Then the imidazoline boric acid ester was synthesized when the intermediate reacts boric acid.
采用两步法合成月桂酸味唑啉硼酸酯.
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A salt or ester of hypochlorous acid.
任何由次氯酸形成的盐或酯.