酸性的

The research indicated that the variation of rain acidity,acid rain frequency and the equivalent concentration ratio of the chief anion ions to positive ones all presented conspicuous ascending trend,the chemical component of the rain was primarily influenced by the acidic gas and marine...

研究表明，深圳市降水酸性、酸雨频率以及酸碱离子当量浓度比值都呈显著的上升趋势，降水的化学成分主要受到社会经济活动产生的酸性气体以及海盐成分的影响，深圳及珠三角地区二氧化硫和氮氧化物排放量的增加是酸雨日益严重的重要原因。

The optimum hydrolytic conditions of razor clam for neutral protease were : enzyme concentration 2.4%, hydrolysis temperature 50癈, substrate concentration 1:3, pH 7 and reaction time 6 hrs with the degree of hydrolysis and extraction rate of total nitrogen 42.46% and 83.04% respectively; and foracid protease they were: en/yme concentration 6.0%, hydrolysis temperature 50癈, substrate concentration 1:4, pH3.5 and reaction time 5 hrs with the degree of hydrolysis and extraction rate of total nitrogen 46.37% and 87.94% respectively, the hydrolysate being clear light yellow. For the combination of two kinds of proteases they were: first hydrolyzing with 2.6% f 1 avouryme for 3 hrs, then hydrolyzing with 2.4% neutral protease for 3 hrs with the degree of hydrolysis and extraction rtiie of total nitrogen 4-1.57% and 86.95% respectively.

最后综合考虑了水解率、总氮回收率和水解液的色泽、澄清度等指标，得出了较适宜的酶种为单酶以枯草杆菌中性蛋白酶和酸性蛋白酶效果较好，双酶以风味蛋白酶与枯草杆菌中性蛋白酶双酶组合水解效果较好，其适宜的水解工艺条件分别为：枯草杆菌中性蛋白酶加酶量为2.4%，水解温度50℃，料水比1：3，pH值中性条件下水解6h，绕蛙蛋白质的水解率和总氮回收率分别为42.46%和83.04%；酸性蛋白酶水解编蛙肉的适宜的工艺条件为加酶量6.0%、水解温度50℃，料水比l：4，pH值3.5条件下水解sh，水解率为46.37%，总氮回收率为87.94%，水解液呈较清澈的淡黄色；双酶采用先用2.6%风味酶水解3h后，再加入2.4%中性蛋白酶水解3h，水解率达44.57%，总氮回收率为86.95%。

Therefore, the previous data of heats of formation of polynitrocubanes estimated from groupadditivity method are corrected.3. Calculations indicate that, for polynitrocubanes, there are parallel relationships between their experimental kinetic acidities pKa, the average s characters in the exocyclic carbon orbital used for the C-H bonds within each molecule, and the average C-H stretching frequencies within each molecule.

计算结果表明，多硝基立方烷的实验动力学酸性pK_a、分子内用于形成C-H键的环外碳轨道平均s成分和分子内的平均C-H伸缩频率之间，存在平行的递变关系，这对基于s_a或v_a的数值预估动力学酸性pK_a、进而指导多硝基立方烷和其它相关化合物的合成有助。

Therefore, the previous data of heats of formation of polynitrocubanes estimated from groupadditivity method are corrected.3. Calculations indicate that, for polynitrocubanes, there are parallel relationships between their experimental kinetic acidities pKa, the average s characters in the exocyclic carbon orbital used for the C-H bonds within each molecule, and the average C-H stretching frequencies within each molecule.

计算结果表明，多硝基立方烷的实验动力学酸性pK_a、分子内用于形成C-H键的环外碳轨道平均s成分和分子内的平均C-H伸缩频率(来源：AB0eC论文网www.abclunwen.com)之间，存在平行的递变关系，这对基于s_a或v_a的数值预估动力学酸性pK_a、进而指导多硝基立方烷和其它相关化合物的合成有助。

In order to discover acid-tolerant Rhizobium meliloti that can nodulate alfalfa high-effectively on acidic soil, researches were explored to isolate rhizobia from alfalfa nodules on acidic soil (pH5.2), methods based on the thesis of adaptive acid-tolerance response of the Rhizobia were adopted, six strains were isolated, which could grow on solid medium with pH4.8 steadily. In addition, the nodulation characteristics, growth curves and mean generation time under different acidity of the strains were examined.

为获得能够使紫花苜蓿在酸性土壤中高效结瘤的耐酸根瘤菌，该研究从酸性土（pH5.2）上生长的紫花苜蓿根瘤中分离到若干菌株，利用根瘤菌对酸的适应性耐受反应筛选到六株能够在pH4.8的固体培养基上稳定生长的菌株，并检测了这六株菌的结瘤特征、不同酸度下的生长曲线和平均代时。

Two different fading procedures were studied. One is the oxidation procedure on polyester fibers,the other is the reduction procedure on wool fibers.The study of oxidation procedure mainly focused on 11 disperse azo dyes and 11 disperse anthraquinone dyes. The study of reduction procedure mainly focused on 7 pyrazolone coupled acid azo dyes and 10 azo disperse dyes which has sulfonic group on the couple component.

本论文研究了11支偶氮型分散染料，11支蒽醌型分散染料在聚酯纤维上的分子结构与光牢度的定量关系，同时研究了7支以吡唑啉酮为偶合组份的偶氮型酸性染料和10支偶合组份上带有磺酸基的偶氮型酸性染料在羊毛纤维上的分子结构与光牢度的定量关系。

Induction of Lactoferrin and IL-8 Release from Human Neutrophils and IL-5, IL-6 and RANTES Secretion from Human Eosinophils by Tryptic Enzymes via Proteinase Activated Receptor 2

PAR2介导的中性粒细胞乳铁蛋白和IL-8的释放以及嗜酸性粒细胞IL-5，IL-6和RANTES的释放论文标题：PAR2介导的中性粒细胞乳铁蛋白和IL-8的释放以及嗜酸性粒细胞IL-5，IL-6和RANTES的释放

It is found that compared with the untreated glass fiber reinforced unsaturated polyester, the fluoridized FRP"s property of anti-water and anti infirm-acid has enhanced, while theproperty of anti- strong acid, anti-strong alkali and anti-organic solvent hasn"t changed much.The property of anti-acid and anti-alkali of the glass fiber reinforced epoxy resin fluoridizedby 3-(1H, 1H, 5H-Octafluoropentyloxy)-1, 2-Propenoxide has a corresponding increase, but theproperty of anti-organic solvent hasnt changed much.

研究发现，经G-02、G-04处理后的聚酯玻璃钢的与未处理的聚酯玻璃钢相比，其耐水性增强，耐弱酸性也有所增强，但耐强酸性、耐碱性、耐有机溶剂的腐蚀性变化不大；而经环氧丙基八氟戊醚处理后的环氧玻璃钢其耐酸耐碱性都有相应的增强，但是其耐有机溶剂的腐蚀性无太大变化。

Sulfur Recovery. The main feed streams to the SRU (Fig. 2) are acid gas from the AGRU regeneration column, which contains all H2S removed from the feed gas and the acid gas from the regeneration-gas treatment unit that contains the mercaptans removed in the MSU.

硫磺回收：输至同步再生机组的主给原料气流（图2）是来自AGRU再生塔的酸性气体，这气体中所含有的硫化氢是从含有硫醇的再生气体解决机组的原料气和酸性气里脱离出来的。

The probe of chip includes the entire genomic DNA of at least ten thiobacillus ferrooxidans, at least two thiobacillus acidophilus sulfur oxides, at least one eosinophils thiobacillus, at least one acidithiobacillus albertensis bacteria, at least six thiobacillus oxidation of ferrous - Lo, at least eight heterotrophic bacteria acidophilus, at least one metal leaf sulfur bacteria, at least one Acidianus tengchongensis, at least a Metallosphaera sedula and at least two of thermophilic bacillus curing.

该芯片的探针包括至少10株氧化亚铁硫杆菌、至少2株嗜酸氧化硫硫杆菌、至少1株喜温嗜酸硫杆菌、至少1株Acidithiobacillus albertensis菌、至少6株氧化亚铁微螺菌、至少8株异养嗜酸菌、至少1株金属硫叶菌、至少1株嗜酸两面菌、至少1株勤奋金属球菌和至少2株嗜热硫化杆菌的全基因组DNA。这种芯片，能够检测酸性环境中丰度较低的微生物，具有高通量、同时、快速、准确、灵敏地分析酸性环境中微生物群落组成的优点。

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。