查询词典 acid process

A novel synthesis process of DFA under autogenous pressure was studied and developed with safflower oil fatty acid.

2采用一次或二次插层的方法，制备了系列有机蒙脱土，并将其用于催化不饱和脂肪酸二聚化反应。

To make such a font, which is 8 "" design process, starting with the entire electrical conduction-shares field knives, hallyo-acidproof gold、silver "" 8 only on font style parts screen business card printing and membership card, and then use the acid etching, besidesyour is not business card printing and membership card making part of the transmission unit.

制作这种"8"字型图案的工艺，首先是在带有整个电传导股的场璃上，闲耐酸性油墨仅对"8"字形部分进行丝网制卡和会员卡制作，然后用酸蚀刻，除去未被制卡和会员卡制作部分的传导股。

DTA-TG and IR analyses showed that the silicic acid gel structure converted gradually to the SiO〓 network during the heat-treatment process.

DTA—TG和红外光谱分析表明，硅酸的凝胶结构在受热过程中逐步转化为三维网络结构。

The effects of using silicon dioxide and coal fly ash as well as sodium borate as additives were studied to improve the mechanical characteristic of the MSWI fly ash with phosphoric acid pretreatment during the sintering treatment process.

为提高经磷酸预处理后的焚烧飞灰在烧结处理过程中的烧结体机械强度，研究了添加SiO2或粉煤灰进行调质，其添加比例对烧结温度和烧结体性能的影响。同时进一步研究了利用硼酸钠作为助熔剂对焚烧飞灰烧结试验影响。

In high selectivity enrichment culturing process and rapid screening procedure, the succinic acid producers with starchness and saccharide were isolated from bovine rumen.

本研究通过采用选择性较强的富集培养和快速准确筛选程序，从牛瘤胃中分离出适于淀粉质原料的琥珀酸产生菌，并进行相关的生理生化鉴定：通过紫外照射诱变育种得到琥珀酸高产突变株，优化培养基组成并确定最适发酵培养条件。

A basic knowledge of microbiology, will be detected with a microscope observation of micro-organisms, medium Preparation, disinfection and sterilization, separation and purification of micro-organisms, bacteria counting method A chemical analysis of the theoretical knowledge and can use chemical analysis methods and equipment of the components of material analysis Master fermentation process principles, understanding of beer, liquor, fermentation production technology Master protein related knowledge, PAGE gel electrophoresis technology, high-speed centrifugal Genetic engineering master the basic theory of knowledge, the extraction and purification of genes, PCR principle, gene recombination technology Master of the basic theoretical knowledge, the immobilized enzyme, the enzyme preparation Application Master of animal and plant tissue culture techniques of experimental steps studied experimental apparatus: Balance (scales, electronic scales, Analytical Balance), or acidity, spectrophotometer, liquid gas chromatography, acid-base titration apparatus, microscopes, centrifuges, ultrasonic cleaning, constant temperature oscillation incubator, super-clean table, steam sterilization pot, the pot constant temperature water bath, PAGE device apparatus, oven, fermenter, such as PCR instrument.

具备微生物理论基础知识，会用显微镜检测观察微生物，培养基的制备、消毒与灭菌，分离与纯化微生物，细菌的计数法具备分析化学的理论知识，能运用化学分析和仪器分析方法对物质的组分进行分析掌握发酵工艺原理，了解啤酒、白酒、发酵生产工艺掌握蛋白质相关知识，PAGE凝胶电泳技术，高速离心掌握基因工程的基本理论知识，基因的提取和纯化，PCR技术原理，基因重组技术掌握酶的基本理论知识，酶的固定化方法，酶制剂的应用掌握动植物组织培养技术的实验步骤学过的实验仪器：天平（台天平，电子天平，分析天平）、酸度计、分光光度计、液气相色谱仪，酸碱滴定仪器，显微镜，离心机，超声波清洗器、恒温振荡培养箱、超净工作台，蒸气灭菌锅、恒温水浴锅，PAGE电泳装置仪器、干燥箱、发酵罐、PCR扩增仪等。

Because of this technology does not need the process of acid pickling and high temperature, there is no hydrogen embrittlement took place in the spare parts, and it possess a great deal of merits such as self-healing function after scotch, meanwhile it has hyper heat-resistance, hyper tonicity, hyper stickability, hyper anti-friction, hyper weatherability, hyper corrosion resistance, and when used outside, it can maintain its color for a long-period without change.

由于该工艺不经过酸洗和高温，所以零件无氢脆发生，擦碰伤后还有自愈合功能，同时还具有高耐热性，高渗透性，高附着性，高减摩性，高耐候性，高耐化学品腐蚀性。用在室外可长期保持不变色等诸多优点。

Fractal is a subdiscipline of nonlinear area, researches on fractal characteristics of the deoxyribonucleic acid sequence may reveal some secret hidden in the DNA sequence during the process of biological evolution. Chaos Game Representation was proposed as a scale-independent representation for genomic sequences by Jeffrey in 1990. This technique, based on iteration function system, represents the word distribution statistics in DNA sequence as the fractal graphic. Therefore, we can get the distribution of sequence through analysis of fractal theory.

分形是非线性领域的一门分支学科，关于脱氧核糖核酸序列分形特征的研究，可以揭示生物在进化过程中隐藏在DNA序列中的某些秘密。1990年Jeffrey提出了基因组序列的与尺度无关的混沌游戏表示法，这是基于迭代函数系统的一种方法，它将DNA序列中一定长度字的分布规律表现为图形的分形特征，进而通过分形分析就可获取序列的分布规律，从而也成为DNA序列分析的一种统计方法。

The development of process technology for manufacture of fatty acid methyl ester sulfonate requires a strict pH control in the neutralization step.

脂肪酸甲酯磺酸盐制造技术的开发提出了对中和工序的非常苛刻的 pH 值控制要求。

Most sulfuric acid is made by the contact process .

大多数的硫酸是用接触法制造的。

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％。