查询词典 acidic

A dye recycled photosensitization system has been designed. As a result of studies in the mechanism of electron transfer reaction of xanthene iodonium salt, it is proposed that the dye-recycled process consists of three-step reactions during the photosensitization: The oxidative fading product of dye is formed through electron transfer under irradiation; In the presence of H-donor, product changes into acidic leuco dye product; Product undergoes deprotonization under action of base to regenerate initial dye.

本文设计了染料循环再生的光敏反应体系，通过对占吨碘翁盐电子反应机制的深入研究，提出了占吨染料在光敏反应过程中的染料再生循环，它依次由三个反应过程组成：在光作用下，通过电子转移反应，产生染料氧化褪色体；在H给体存在下，通过H转移反应，使产物转化为染料酸式隐色体；在碱作用下，发生去质子反应，染料再生回复到染料的起始结构。

Degradation rate was influenced by pH value of the soil. The degradation of Chlorsulfuron in alkline soils was slowly, on the contrary, in acidic soils were rapidly. Chlorsulfuron in alkaline soils easy cause detrimental effects on the crops easily. 2. Many xerophyte of succeeding to wheat is highly sensitive to Chlorsulfuron. The succeeding crops will be injured if Chlorsulfuron is used in alkaline soil.

通过各项试验研究取得结果如下： 1、氯磺隆土壤残留研究表明，它在土壤中的降解主要以水解作用为主，土壤pH是影响氯磺隆在土壤中降解速率的主要因子，它在酸性土壤中降解较快，而在碱性土壤中降解较慢，因此氯磺隆农药在碱性土壤中使用易造成对后茬作物的危害影响。

Island is northeast-southwest direction from Ma on Kong, BAI turtles, fish head three components, the Department of Jurassic acidic lava on the EC composition, White color Youngling.

岛呈东北-西南走向，由马鞍岗、白石山、龟鱼嘴三部分组成，系侏罗系上统酸性熔岩构成，色白而得名。

Analysis of one trouble in acidic potassium chloride zinc plating

简述了氯化钾镀锌有机添加剂的概况，介绍了氯化钾镀锌溶液的优良性能。

Now, there are two types used in electroplating of zinc-nickel alloys. One is slight acidic choloride electrolyte system, another is alkaline zincate system.

现在常用的锌镍合金镀液主要有两种类型，一种是弱酸性氯化物镀液，另一种是碱性锌酸盐镀液。

The main work of this thesis is to research the sulphate bath, we find that the sulfate system has the advantage of slight acidic choloride electrolyte system and alkaline zincate system. The solution of sulphate system is very simple and easy to maintain and high current efficiency. Furthermore, the technology has the advantage of lower plating cost and broader width of the temperature.

本论文的主要内容是以文献中报道不多的全硫酸盐体系电镀锌镍合金为研究对象，发现全硫酸盐体系结合了上述两种类型的优点，镀液成分比较简单，容易维护，对材料、设备的腐蚀比较小，阴极的电流效率高，而且该工艺具有成本较低和温度范围宽等优点。

Namely, the fluid of swift water and tiny whirlpool come from kinetics of the process which make the mass transfer better; 2 Increase alkalinity to improve the capability of abirritation of the system and an optimal pH condition which fit to acidic bacterium come into being.

即通过动力学措施造成反应器内流体介质的湍动及形成微涡旋，利用涡流扩散和对流扩散来加速传质；2提高所处理的碱度，增强系统的缓冲能力，控制酸化菌生存的最佳pH值范围，以实现系统在酸化段有机去除能力的高效性。

The characteristic of ABR is change water power characteristic and to improve the term of mass transfer in the reactor in order to increase the reaction velocity; and increase alkalinity to improve the capability of abirritation of the system through add Na2CO3 to reaction and a optimal pH condition which fit to acidic bacterium come into being. In result, the organic matters are removed efficiently in system.

异波折板水解酸化反应装置最大的特点是改变了水流特征，改善反应装置内酸化菌与基质之间的传质条件，以加快反应速率：同时在反应装置内加入碳酸钠，碳酸钠溶液作用在于提高反应装置内废水的碱度，增强系统的缓冲能力，把pH值控制在适合酸化菌生长的范围，充分发挥微生物的活性，使系统的有机去除能力大大提高。

The strongly acidic cation exchange resin catalyzed synthesis of fructone-B by the reaction of ethyl acetoacetate and 1,2-propanediol was studied.

以硫酸高铈铵为催化剂，通过乙酰乙酸乙酯分别与乙二醇和1，2-丙二醇反应合成了苹果酯-A和苹果酯-B，研究了催化剂等有关因素对产品收率的影响。

An aciduric mutant with steady hydrogen-producing capability, which was able to grow at acidic pH of 3.0, was obtained. Its capability of hydrogen production was measured in the batch culture experiment.

结果筛选到一株遗传性状稳定的高产氢突变株，具有良好的耐酸性，在pH值3.0时仍能生长。

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。