查询词典 acid process

The pretreatment process of propionic acid fermented broth by hollow-fiber membrane was investigated.

利用中空纤维膜对丙酸发酵液的预处理进行了初步研究。

A salt or an ester of propionic acid .an enzymatic process in cell metabolism that synthesizes ATP from ADP.

在细胞的新陈代谢中一种由二磷酸腺苷合成三磷酸腺苷的酶促过程。

Based on 26B4APBN monomer, polyamic acid was obtained by polymerization with pyromellitic dianhydride, and further imidized into polyimide film by heating process.

由二胺单体和均苯四甲酸二酐进行聚合得到26B4APBN/PMDA聚酰胺酸，再经热亚胺化得到聚酰亚胺薄膜；测试了该薄膜的接触角，讨论了单体分子结构对聚合物接触角的影响。

IntroductionSmooth surfaced endoplasmic reticula contain plenty of cyto-chromes, which are mainly cytochrome P450 ( CYP450 ) and b5 and are very important in the process of the biotransformation of exogenetical fat - soluble compounds and the metabolism of some endogenetical matrices, such as bile acid forming^ bile pigment metabolism and steroid synthesis.

CYP450是50年代中期Williams和Klingeberg发现、60年代初木村和佐藤验证的一类b族细胞色素，由于还原型细胞色素与一氧化碳结合后在光谱的450nm处具有最高吸收峰，因而命名为CYP450以别与其它b族细胞色素，P是英文Peak的缩写。

Two multifunctional agent, glycidyl methacrylate and refined ricinoleic acid , were adopted to modify EPDM in situ during compounding and vulcanization process. The effects of the modifiers on vulcanization behavior, processiability, different properties of the vulcanizates were investigated.

为此，选择了含有极性基团的多官能团小分子改性剂甲基丙烯酸缩水甘油酯和精制蓖麻油酸，在橡胶混炼和硫化过程中对EPDM进行原位改性，研究了原位反应技术对过氧化物硫化EPDM橡胶的反应特性、加工性能、力学性能、热性能、耐老化性能、耐屈挠疲劳性能及与金属的粘合强度等性能的影响，并探讨了其改性的机理。

The solvent extraction of roselle seed oil was performed by a single factor test and better process conditions were determined. The fatty acid composition of roselle seed oil was also analyzed.

采用单因素实验，对玫瑰茄籽油的溶剂提取法进行了研究，同时分析测定了玫瑰茄籽油的脂肪酸组成。

The dry matter weight accumulation of different organs in growth process and contents of scutellarin and coffeic acid ester in whole plant of E. breviscapus were determined.

观测了灯盏花植株的生长发育进程，全草及各部位的干物质积累规律和全草主要有效成分灯盏乙素和咖啡酸酯含量的积累规律。

The components of impurity in sebacic acid from traditional process were analyzed by GC-MS.

采用气相色谱-质谱联用分析确定了传统工艺生产的癸二酸中的主要杂质。

About 30 tons wastewater will be discharged for each ton production of sebacic acid in the present industrial process.

在目前的工业生产工艺中，每生产1吨癸二酸，需排放约30吨废水，废水中含有的主要成分为硫酸钠、苯酚、癸二酸以及其它一些脂肪酸等。

The obtained terephthalaldhydic acid semicarbazone has such advantages as simple process and high purity (above 99% after post treatment), and can be used as standard in enzymoimmunoassay of semicarbazide.

本发明成功合成了呋喃西林代谢物氨基脲的衍生物氨基脲缩对醛基苯甲酸，合成步骤简洁，经过后处理，纯度高达99％以上，完全可以用作标准品，为以后人们对氨基脲的酶联免疫检测研究提供了方便的途径，可以满足国内对其研究的需要。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。