查询词典 acidity

Ideally, the tannin is well integrated and in balance with the fruit and acidity.

理想的单宁应该是完美结合且有着平衡酒中果香和酸度的作用。

In hot regions, extra tartaric acid is added to 'correct' the acidity.

在热的地区，需加入额外的酒石酸来"纠正"酸度。

Grapes are one of the few fruits to contain tartaric acid, the major wine acid and the most important source of acidity in wine.

葡萄是少数含有酒石酸的水果的一种，（酒石酸是酒中主要的酸性物质，同时也是酒的酸度的最重要来源）。

If the acidity is less than .7%, add enough tartaric acid to bring it to that level.

测定酸度：用你的测酸计测葡萄汁的酸度，如果酸小于0.7％，就需要添加酒石酸直到你希望的酸度。

UV-Vis spectra were measured in weak acidity, neutrality and weak base, the absorption spectra were changed with a large red shift in weak base because of intramolecular charge transfer and azophenol-quinone tautomerism.

并且测量了它们在弱酸性，中性和弱碱性条件下的紫外吸收光谱，讨论了吸收光谱与分子结构之间的关系，认为分子内的电荷转移和醌式互变是碱性条件下吸收光谱发生明显变化的根本原因。

Master the Keto-Enol tautomerism; reactions of enols:α-H substitution reactions;α-halogenation of aldehydes and ketones;α-bromination of carboxylic acids; acidity ofα-H atoms: enolate ion formation; reactivity of enolate ions; alkylation of enolate ions; mechanism of carbonyl condensation reactions;condensations of aldehydes and ketones: the Aldol reaction; dehydration of Aldol products; the Claisen condensation reaction; the Michael addition.

熟练掌握酮式－烯醇式互变异构；烯醇的反应：α-H的活性；醛酮的α卤代反应；羧酸的α-溴代反应；α-H的酸性：烯醇负离子的形成；烯醇负离子的反应；烯醇负离子的烃基化；羰基化合物的缩合反应机理；醛酮的缩合反应－Aldol缩合；Aldol缩合产物的脱水反应； Cleisen 酯缩合反应；麦克尔加成反应。

Thus this method could be applied to monitor the process of producing dinitrogen pentoxide by electrochemical oxidation of dinitrogen tetroxide in nitric acid. The results from the two-step titration method of redox titration combined with acidity titration were well consistent with that from the method of redox titration combined with NMR.

氧化还原和酸度两步滴定与氧化还原滴定结合核磁共振光谱法的分析结果表明，两种方法的分析结果吻合良好，精确度良好，两种方法都可用于N_2O_4-N_2O_5-HNO_3体系各组分的全浓度分析。

The optimum conditions such as acidity, reaction temperature, dosage of thoron Ⅱ solution and reaction time for the system were studied in detail.

详细考察了反应酸度、温度、钍试剂Ⅱ浓度及反应时间等对铬测定的影响。

Amount of luscious group of acidity of surface of the CF after using Boehm titrate method to determine to be handled through nitric acid.

采用Boehm滴定方法测定了经过硝酸处理后CF表面酸性官能团数量。

LD's leading product line of intelligent industrial control instruments for temperature, humidity, pressure, flow, level, acidity and other parameters automatically detect, display, Totalizer and control, in the metallurgical, chemical, light industry, food, Pharmaceutical, oil refining, electric power and other industries to be widely used, its excellent cost performance has increasingly come under the favor of all walks of life.

公司的主导产品LD系列智能型工业控制仪表，用于温度、湿度、压力、流量、液位、酸碱度等参数的自动检测、显示、积算及控制，在治金、化工、轻工、食品、制药、炼油、电力等行业中得以广泛使用，其优良的性能价格比日益受到各行各业的青睐。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。