查询词典 alkali

At first, the color stability of different vat dyestuffs as dyed-reagents for viscose was studied. According to the results of experiments, we get to know that the conditions all will influence the color stability of vat dyes, such as the alkali with high concentration, oxidizing with alkali, and soap-washing.

本文首先研究了不同还原染料应用于粘胶纺液着色纺丝加工时的色光稳定性，讨论分析了高浓度碱剂、带碱氧化以及皂洗等工艺条件对还原染料色光稳定性的影响。

3 By dose alkali in a two-pass RO system ; the formula can be used as a reference for design and debugging of the system to calculate the added alkali in two-pass RO .

本文根据水中碳酸平衡原理分析了反渗透系统产水pH值的变化，得出pH值下降量等于系统对HCO3-透过率的负对数的结果，并导出了在两级反渗透系统中加碱调节pH值至8。

Topsoil soil salinity of 0.2%-0. 4%, and called the light saline-alkali soil, select salt-tolerant crops and varieties, such as sunflower, sugar beet, sorghum, and black beans to the corresponding saline-alkali and other measures, will be able to obtain higher yield.

耕层土壤含盐量为0.2％—0.4％的，叫轻盐碱土，选择耐盐作物和品种，如向日葵、甜菜、高粱、黑豆等采取相应的抗盐碱措施，就能获得较高产量。

The experiment adopt capital: Thousand layers of tower entire grass crush , the sour water logging carries , centrifugal fliteration , concentration, neutralize , the organic solvent extracts , oppose an extraction , still organic menstruum of alkali liquor extracts , concentrates , extracts except steps such as miscellaneous , fading and highly valuing crystal from the thousand layers of a tower middle draw, pure fossil China fir alkali A.

本实验采用：千层塔全草粉碎、酸水浸提、离心过滤、浓缩、中和、有机溶剂萃取、碱液反萃取、再有机溶剂萃取、浓缩、萃取除杂、脱色和重结晶等步骤从千层塔中提取、纯化石杉碱甲。

The results showed that by using ethanol-alkali method to prepare cold-water-soluble starch, the impact of ethanol concentration and reaction time on the solubility of wheat granular cold-water-soluble starch was significant; the appropriate preparation conditions for wheat cold-water-soluble starch was on the reaction temperature of 65℃, ethanol concentration of 80 mL/l00 ml, reaction time of 80 min, alkali concentration of 10 g/100 ml, under this condition the solubility of the product was up to 81.44%.

结果表明：采用乙醇－碱法制备小麦颗粒状冷水可溶淀粉，乙醇体积分数和反应时间对产物溶解度的影响显著；小麦颗粒状冷水可溶淀粉的适宜制备条件为反应温度65℃，乙醇体积分数80%，反应时间为80min，碱浓度10g/100 ml，其溶解度可达81.44%。

Shanghai Chlor-Alkali Plant, Jiangsu Su Group, Gelinyipu Chemical Co., Ltd. in Wuxi, Jiangsu Jiangdong Chemical Co., Ltd., the town Jiang Zhenbang Chemical Co., Ltd., Jiangsu Yang agricultural chemicals group, Sinopec Nanjing Chemical Factory, Shandong pesticide factory, Shenyang Chemical Co., Ltd., Chemical Plant in Kaifeng, caustic soda plant in Xinjiang, Inner Mongolia Dongsheng Group of Iraq, two of Beijing Co., Ltd. of South East Xinhua, Guangzhou, 1000 chlor-alkali chemical plants and other enterprises have been used by In the mud of salt, calcium carbide mud filter.

上海氯碱总厂，江苏苏化集团，无锡格林艾普化工股份有限公司，江苏江东化工股份有限公司，镇江振邦化工有限公司，江苏扬农化工集团，中石化南京化工厂，山东农药厂，沈阳化工股份有限公司，开封化工总厂，新疆烧碱厂，内蒙东胜伊化集团公司，北京化二股份有限公司，东南电化股份有限公司，广州化工厂等上千家氯碱企业相继使用，用于盐泥、电石泥过滤。

The very good method to analyze the structural change of reaction process of polyvinyl alcohol modified UF resin by the traditional process alkali-acid-alkali is 13C-NMR,and which extrapolate a possibly reaction.

通过13C-NMR解析了采用传统工艺合成聚乙烯醇改性脲醛树脂反应过程中的结构变化，并推测其反应。

Thepresent paper carries on the raise first to the camptothecaacuminata roots of the hair, then in the use chloroform extractioncamptotheca acuminata culture medium the camptotheca acuminataalkali and so on effective component, and examines the law withHPLC to examine its effective component, the examination discoversthe camptotheca acuminata secretion in the culture medium secondarymetabolite besides the camptotheca acuminata alkali, the hydroxylcamptotheca acuminata alkali, the white birch fatty acid, but alsoincludes other effective components.

本论文先对喜树发根进行培养，然后使用氯仿提取喜树培养基中喜树碱等有效成分，并用HPLC检测法检测其有效成分，检测发现喜树分泌在培养基中的次生代谢产物除了喜树碱、羟基喜树碱、白桦脂酸外，还含有其他有效成分。

PCE-C was exrtacted by water extraction and alkali extraction technology. The results showed that the yeild of PCE-C by water extraction was lower than alkali extraction, while the hypoglycaemic activity followed reverse order.

分别采用水提和碱提两种工艺提取PCE-C，由PCE-C的得率及活性测定结果可知，水提工艺提取的PCE-C的得率略低于碱提工艺，但降血糖效果强于碱提。

The good method to analyze the structural changes of reaction process of melamine modified UF resin by the traditional process alkali-acid-alkali is 13C-NMR. It can also extrapolate potential reaction.

通过13C-NMR可以很好地解析采用传统工艺合成三聚氰胺改性脲醛树脂反应过程中的结构变化，并可推测其发生的反应。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷