查询词典 acetic aldehyde

This article describes the production status, and discusses the strongpoint and shortcoming of using differente catalyst, sulfur and acetic anhydride .

对比两种催化剂的实际生产情况，阐述用硫磺以及用醋酐的优缺点。

The effects of reaction time and acetic anhydride/anhydroglucose unit molar ratio on the DS of starch acetates were investigated.

考察了反应时间和酰化试剂用量对酰化程度的影响。

The results showed that the optimal condition was achieved when the ratio of water-soluble gardenia blue pigment to acetic anhydride was 1:20 and reaction time 4 h at room temperature.

结果表明：采用料液比1：20，在常温下反应4 h，为制备憎水性栀子蓝色素的最优条件。

Then add, in the following order, 93±3 mg (0.5 mmol) of ferrocene, 0.35 mL of acetic anhydride, and 0.1 mL of 85% phosphoric acid.

然后按以下的次序，加入93±3 mg (0.5 mmol)的二茂铁，0.35ml的乙酐，和0.1ml 85%的磷酸。

Ferrocene will be acetylated by the action of phosphoric acid* and acetic anhydride*.

二茂铁可以与磷酸*和乙酐*作用而被乙醯化。

Acetic sort is different, the content of organic acid also each are not identical.

醋的种类不同，有机酸的含量也各不相同。

Acetic. Term applied to wines which have under gone acetification and to the odour of such wines.

醋酸的：用于描述发生醋酸化的葡萄酒，以及此类葡萄酒所散发出的气味。

A Acetic. Term applied to wines which have undergone acetification and to the odour of such wines.

醋酸的：用于描述发生醋酸化的葡萄酒，以及此类葡萄酒所散发出的气味。

Acetic. Term applied to wines which have undergone acetification and to the odour of such wines.

醋酸的：用于描述发生醋酸化的葡萄酒，以及此类葡萄酒所散发出的气味。

A Acetic Term applied to wines which have undergone acetification and to the odour of such wines.

醋酸的：用於描述发生醋酸化的葡萄酒，以及此类葡萄酒所散发出的气味。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48