酸性

The intensification of air contamination forms mass acid rain, in the form of acid snow inwinter.

空气污染的加剧，形成了大量的酸性雨，在冬季则以酸性雪的形式出现。

With the change of pH value, the specific value of fluorescence intensity and the pH change are in linear correlation in a certain range of acidity and alkalescence.

并且随着pH的变化，在酸性和碱性的一定pH范围其荧光强度的比值与pH的变化呈线性相关，据此，可实现比率法测定酸性或碱性范围内的pH变化。

If this symptom appears ,you should adjust you r bite and sup ,do not take too much acid food ,take alkalescence food

有此现象时，请注意饮食的调节，勿食用过多的酸性食物，应多摄取碱性食物，每日的食用量为碱性四份、酸性一份。

The methylated amidogen still held protonation at low pH. Therefore, the adsorption ability of biomass was almost unchangeable through methylation of amidogen in biomass. The acetylated amidogen lost protonation at low pH, and the capacity of dye adsorption of biomass decreased by 51.6% after acetylation of amidogen in biomass.

甲基化氨基在酸性条件下仍然可以质子化，故氨基甲基化修饰后染料吸附性能不变；乙酰化氨基在酸性体系中失去质子化能力，乙酰化修饰菌体染料吸附性能下降51.6%。

Paragenetic association I are composed of dissolved feldspar, quartz overgrowth and authigenetic kaolinite, This paragenetic association came into being acidic environment; Paragenetic association II include illite、albite、dissolved authigenetic quarze and kaolinite、dolomite、ankerite and ferrocalcite, the paragenetic association formed alkali environment; secondly, outcrop sandstones include paragenetic association III making up of dissolved feldspar、kaolinite、dickite and ironstone too, this paragenetic association came into being ground surface acidic environment.

成岩共生组合I由长石颗粒溶解、次生加大石英和自生高岭石组成，该组合形成于酸性成岩环境；成岩共生组合II由自生伊利石、自生钠长石、自生石英与高岭石溶解、白云石、铁白云石、铁方解石组成，该组合形成于碱性成岩环境；其次，露头砂岩还包括由长石颗粒溶解、高岭石、地开石、褐铁矿组成的第III种成岩共生组合，该组合形成于地表酸性成岩环境。

The author creates the AutomaticallyDiscriminational Model for the Classification of Sandstones System, thatis to say, people can complete the vastly sample s classification of sandstonesaccurately and swiftly, meantime, diminish the possibility of mortal mistake. Based on the study of the basic sandstone component before embedding, the typeof authigenic mineral, and the forming mechanism of porosity in Upper Paleozoicreservoirs in Ordos basin, the author selects the reasonable experiment objects forWater-Rock Interaction modeling study, designs the relatively reactant and resultantduring the diagenesis period, builds the solid-liquid thermodynamics model with theprinciple of thermodynamic phase equilibrium for kinds of primary minerals (potashfeldspar, albite, anorthite, and pyroxene, hornblende) which dissolve in acidic media,and forms the corresponding thermodynamics test database.

在对鄂尔多斯盆地上古生界储层砂岩埋藏前组成、自生矿物类型和孔隙构成研究的基础之上，确定合理的沉积盆地水—岩相互作用模拟研究的实验对象，设计了埋藏成岩过程有关反应的反应物和可能的生成物，并通过热力学相平衡原理，建立了碎屑岩在埋藏成岩过程中各种骨架颗粒(钾长石、钠长石、钙长石以及铁镁暗色矿物中的辉石、角闪石等)在酸性介质条件下发生溶解的固体—流体相化学反应热力学计算模型，并获得了相应的热力学数据库，在此基础上对储层砂岩中主要造岩矿物(钾长石、钠长石、钙长石以及铁镁暗色矿物中的辉石、角闪石等)在埋藏成岩过程的酸性介质条件下发生溶解的热力学习性进行了论述。

Based on the natural gamma log curve s of acid tuff and clay rocks of acid volcanic events,the author here queries the arguments that radioactive intensity of sedimentary strata will grow with the increasing argillaceous materials and that the natural gamma value and the empirical equation can be used to calculate contents of argillaceous materials.

根据酸性凝灰岩和酸性火山事件粘土岩的自然伽马测井曲线，对当前流传的"沉积岩层的放射性强度随泥质含量的增加而增高"的概念和用自然伽马值及经验公式求泥质含量提出质凝。

The results show that the oxidation process of arsenopyrite is speeded up with increasing concentration of FeCl3solution and rising temperature of reaction within the temperature range of 15~35℃, whereas the reaction rate of arsenopyrite is reduced at 45℃, and that the arsenic released from the reaction of arsenopyrite with FeCl3acidic solutions whose concentration is lower than 1×10-4mol·kg-1is in the form of As, which is likely to be soon oxidized into As in the FeCl3acidic solution.

结果显示：在温度为 15~35℃内，毒砂的氧化随FeCl3溶液浓度增加和反应温度升高而加速，而45℃时毒砂的反应速率反而降低；毒砂在与氧化剂FeCl3酸性溶液(浓度小于1×10-4mol·kg-1)反应时释放到溶液中的砷为As，As在FeCl3酸性溶液中很快被氧化成As。

ConclusionPheretima aspergillum is suitable to the acidic soil habitat, high water content and dry soil are unsuitable for their lives.

结论参环毛蚓选择在湿度适中，偏酸性的土壤中生活；高湿及较干燥，强酸性和碱性的土壤不适宜其生活。

During the investigation on the isolation of aureomycin from fermentation broth, it was observed that the stability of aureomycin depended upon the pH and temperature of the solution.

本文测定了金霉素在酸性溶液中(0.01，0.1及1N盐酸)及在碱性缓冲液中(pH7.4，8.0，8.6，9.2)的稳定性，找出在碱性缓冲液中的稳定性较在酸性溶液中为小。

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。