查询词典 alkali

Results show that the activation product is an amorphous alkali-aluminosilicate gel with a structure similar to that of zeolitic precursors.

结果表明：水化产物是类似于沸石类结构的无定形碱硅铝凝胶，碱溶液、液固比、养护温度和养护时间等因素影响着水化产物及其强度的形成。

It is experimentally demonstrated that ASR expansion of zeolitization perlite aggregate mortars can be inhibited by adding 10% DS at the alkali content of 2.5% in the curing conditions of 40℃ and 80℃. The expansion of samples was less than 0.1% after 90 days.

试验表明：碱含量为2.5%时，在40℃和80℃养护条件下，DS掺量10%对沸石化珍珠岩集料砂浆试件ASR有效抑制，90d龄期时试件膨胀值仍小于0.1%。

The prevention and countermeasure of Nitrogen Trichloride fire explosion were discussed from the fire explosion fatalness,the harm,the reason of forming and gathering in the chlorin and alkali producing of Nitrogen Trichloride in the article.

赵秋德，三氯化氮火灾爆炸防治对策研究从三氯化氮的火灾爆炸危险性，三氯化氮的危害，三氯化氮在氯碱生产中生成和富集原因等方面入手，论述了三氯化氮火灾爆炸事故的防治对策。

Basing on the the best batch and the best parameters of heat treatment,we mainly investigates the quotiety and quality of deoxidized iron during the course of parent glass preparing according to the characteristic of batch; meanwhile, we discussed the effects of different kinds and contents alkali metal oxid on the glass-ceramic properties,and technics parameters of prepareing the glass-ceramic composite tube by centrifugal molding are also researched originally.

在获得镍渣—粉煤灰微晶玻璃的最佳配比以及最佳热处理制度的基础上，根据配料特点对玻璃熔制过程中铁的还原效果及还原质量进行了分析研究；着重探讨了不同类型、不同含量的碱金属氧化物对微晶玻璃性能的影响；同时也对微晶玻璃复合管的离心制备工艺进行了初步研究。

The chemical components of eucalyptus and their changes during the alkali sodium sulfite pretreatment and peroxid bleaching process had been studied by FTIR.

用傅里叶变换红外光谱法对桉木中各组分在碱性亚钠法化机浆预处理及漂白过程中的化学变化进行了研究。

The diffirences about the promotion mechanism of methanol to PCBs decomposition are found between SCWO and SCWT. The dechlorination reaction was accelerated due to the decrease of HCl which produced in the dechlorination process by the neutralisation of HCl with alkali catalyst.

发现在超临界水氧化与超临界水裂解条件下CH3OH对PCBs降解反应的促进机制有所不同，碱催化剂通过中和反应过程中产生的HCl生成NaCl沉淀导致体系中Cl的含量降低，从而促进脱氯反应的进行。

The stain, named as SH4, possessed widely ranged pH from 5.5 to 9.5 for its growth and excellent ability of acclimatizing itself to acid-alkali.

该菌对酸碱具有良好的适应性，培养3d后，在初始pH值6.0~8.0的培养基中甲烷产量相差不大，且基本达到最大产量。

The effect and mechanism of alkali-treatment, the acidifying bleaching mechanism, the interactions and mechanism between electrolytes, food gums and agar during the process of agar from Gracilaria species were profoundly studied in this thesis, the mechanism of processing high strength agar from Gracilaria was explored.

本文对江蓠加工琼胶过程中的碱处理，酸化漂白，琼胶与电解质、食品胶之间的相互作用及作用机理等方面进行了深入的研究，探讨出江蓠加工高强度琼胶的机理。

The interactions of alkali and alkaline-earth ions and rare—earth metal ions with saccharides, resulting in the formation of saccharide adducts, have been investigated in great detail.

本文主要从糖的构型、构象、金属离子半径的大小和电荷的影响等方面入手分别研究了固体和水溶液中糖与金属离子的配位现象。

During the period of the mineralizing, the surroundings of studying are is continental facies. The aggraded materials who have experienced long time efflorescence and leaching have corrosion and eluviated the alkali metals, alkaline earth, silicon, iron and so on. The schwer l Al2O3 is keeped down. So this condition made the enrichment of the aluminum and the bauxite is formed.

铝土矿成矿时期，研究区为陆相环境，已沉积物质在炎热潮湿的气候条件下经历了长期的风化淋滤作用，将碱金属、碱土金属、硅、铁等溶蚀淋滤掉，难溶的Al2O3残留下来，造成铝的富集，形成了铝土矿。

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