Cirrus sac located between intestinal fork and acetabulum, 0.259-0.388×0.146-0.178 mm.

1、

Butyraldehyde glycol acetal was synthesized from butyraldehyde and glycol by using iodine as catalyst.

以单质碘为催化剂,通过丁醛和乙二醇反应合成了丁醛乙二醇缩醛.

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2、

In this paper , the synthesis and application of glycerol cyclic acetal acrylates were investigated.

报道了一种低收缩型不饱和聚酯用分散稳定剂.

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3、

Aim Enanthal diethyl acetal is prepared with heptaldehyde and triethyl orthoformate as raw materials.

目的研究以庚醛和原甲酸三乙酯为原料制备庚醛二乙缩醛的工艺条件.

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4、

Butyraldehyde 1,2 propanediol acetal was synthesized by using stannous chloride as catalyst.

以非质子酸氯化亚锡为催化剂,催化合成了丁醛-1,2-丙二醇缩醛.

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5、

Butyraldehyde 1,2 proparediol acetal was synthesized by using stannous chloride as catalyst.

以非质子酸氯化亚锡为催化剂,催化合成了丁醛-1,2-丙二醇缩醛.

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6、

These results suggested that alcohol and acetaldehyde a significant restrained action to oligodendrocyte.

酒精、乙醛对少突胶质细胞生长有明显抑制作用.

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7、

A fast chromatographic determination of formaldehyde and acetaldehyde from the feed-in of pentaerythritol production was reported.

利用色谱法快速测定甲醛、乙醛混合溶液中各组分的浓度,为工艺提供准确的数据,指导工艺生产.

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8、

Gas chromatography ( GC ) technology was used to analyze the acetaldehyde in engine exhaust gas.

介绍了利用气相色谱分析技术分析发动机尾气的方法.

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9、

Photocatalytic degradation products of acetaldehyde included acetic acid, carbon dioxide and H 2 O vapor.

气态乙醛光催化降解产物包括乙酸、 CO2和H2O等.

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10、

Gas is a very important analysis way, which is analyse ethanol and acetaldehyde in the experiment.

在发动机尾气测试过程中, 通常我们只能测量排气中的总碳氢,并不知道排气中的乙醇和乙醛的具体含量.

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11、

The necessary material of 2-( 2-methoethyl ) acetaldehyde diethyl acetal was synthesized in addition.

另外还合成了必需原料 2- ( 2- 甲氧基乙氧基 ) 乙醛二乙醇缩醛.

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12、

A colorless liquid polymer, C 6 H 12 O 3, of acetaldehyde, used as a solvent and a sedative.

仲(乙)醛,三聚乙醛一种用作溶剂和镇定剂的无色液体聚合物, c6h12o3.

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13、

The concentration of ethanol and acetaldehyde in Meiguixiang grape after 120 day storage was studied.

研究了不同极值气体条件下贮藏过程中,玫瑰香葡萄果实内乙醇和乙醛含量的变化规律.

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14、

Pressure distillation used in acetaldehyde production can save energy markedly.

将加压蒸馏技术应用于乙醛生产,节能效果显著.

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15、

Acetaldehyde almost exists ubiquitously and is harmful to people.

乙醛广泛存在于环境中,危害人体健康.

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16、

Perfume Features: The main tone of acetaldehyde rose floral notes.

香水特色: 以玫瑰为主调的乙醛花香调.

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17、

Alcohol dehydrogenase An enzyme that converts ethanol into acetaldehyde ( ethanal ).

醇脱氢酶:把乙醇转化为乙醛的酶.

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18、

During alcoholic fermentation acetaldehyde acts as a hydrogen acceptor instead of oxygen.

在这个过程中乙醛取代了氧作为氢的受体.

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19、

The corresponding reaction of acetaldehyde is subject to general base catalysis.

乙醛相应的反应服从广义的碱催化.

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20、

This paper discussed three methods of producting vinyl etherspreparation from acetylene, dehydrohalogenation and acetals.

论述了乙烯基醚类化合物的三种主要制备方法乙炔法、脱卤化氢法和缩醛热分解法.

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