酸性

The study was based on domestic and international processing teChnologies of pisskin garment, selecting excellent auxiliary liming agents and acidic enzyme bate and using lime and enzmpe especially treat the butt so as to deliminate positional differences and obtain even fibre splitting. In tanning process, RE-KMC combination tannage was used.

本文在猪皮服装革生产中，采用包灰，包酶等手段重处理臀部，消除部位差，并使用优良的浸灰助剂，酸性酶软助剂等，使纤维得到均匀分散；鞣制采用稀土一KMC结合鞣法以及使用发泡感强，柔软丰满性好的材料，进行配合使用。

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）。

Osteoclasts ; cell culture ; survival period ; tartrate resistant acid phosphatase

破骨细胞；细胞培养；生存时间；抗酒石酸酸性磷酸酶

Osteoclasts isolated from Shan sheldrakes were cultured with different concentrations of calcium 2, 3, 5, 7 mmolL^(-1. OCs were identified by tartrate resistant acid phosphatase staining and observed by phase-contrast microscope at 1, 3, 5, 7 d after treated by calcium.

分离山麻鸭破骨细胞，在此基础上添加不同浓度钙离子2、3、5、7 mmolL^(-1，倒置、显微镜观察体外培养OC形态，培养1、3、5、7 d进行抗酒石酸酸性磷酸酶染色，7 d后扫描电镜观察象牙片吸收陷窝。

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。

The chemical stability of new oxyfluoride glasses containing telluride at different conditions was investigated.

对新型含碲氧氟化物玻璃在中性、碱性、酸性条件下的化学稳定性进行了研究。

After hydrolysis of TEOS for some time,〓 was added to the sol solution.

它是即在用盐酸作为酸性催化剂水解一定时间的溶胶中，加入六次甲基四胺作为碱性催化剂。

In acid conditions, Cadmium reacts with methyl violet-nitroso-R-salt to form ternary purple association complexes with positive and negative absorption peaks.

在酸性条件下，甲基紫-亚硝基R盐与Cd发生显色反应生成具有正、负吸收峰的紫色三元络合物。

In acidic medium,ammonium vanadate and ammonium molybdate are added,which,with phosphorous acid,form yellow ternary acid of phosphor,vanadium and molybdenum,by which the content of phosphor can be determined.

试样经盐硝混合酸溶解，以过氧化氢将亚磷酸氧化成正磷酸，在酸性介质中，加入钒酸铵和钼酸铵与磷酸形成黄色的磷钒钼三元杂多酸，从而进行磷的测定。

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。