查询词典 alkali

By studying the alkali erosion mechanism and alkali resistance of glass fibers,the paper comes to conclusions that the corrosion of glass fibers by cement matrix includes the chemical action of hydroxide ions and silica tetrahedrons and the physical action in the static fitigue process,and that glass fibers behave quite differentl.

通过对玻璃纤维碱侵蚀机理和耐碱性的探讨，得出了水泥基对玻璃纤维的腐蚀作用包括氢氧离子和硅氧四面体的化学作用和静态疲劳过程的物理作用及玻璃纤维因成分和结构的不同有很大的差异等结论。

Volatilized alkali metals contribute to refractory crown corrosion and both carryoverand volatilized alkali increase particulate emissions.

挥发碱金属有助于难治冠腐蚀与双方结转和挥发碱增加微粒。

Glass fiber with the Nanjing Research Institute of alkali to high-quality, high-alkali glass fiber cotton as the main raw material of the current wet forming process of advanced maintenance-free lead-acid batteries are made of glass fiber adsorption partition and the compound separated board.

公司与南京玻璃纤维研究院合作以优质中碱、高碱玻璃纤维棉为主要原料采用目前先进的湿法成形工艺制成免维护铅酸蓄电池玻璃纤维吸附性隔板和复合隔板。

The alkali solution concentration and steam explosion process condition were optimized by testing the solubility of soft cellulose after steam explosion before and after treatment towards aq.NaOH with various concentration. It was concluded that the soft cellulose can dissolve in the 9% aq.NaOH solution completely under the condition of explosion pressure 3.0Mpa and explosion time 60s. At the same time, the influence of sweller-thiourea on the new aq. alkali soluble cellulose/NaOH solution was studied in this paper. The dissolving phenomena and the steam explosion mechanism of soft cellulose were discussed.

本文通过对闪爆前后软木纤维素在不同浓度的稀碱溶液中溶解度的测试分析，优化了碱溶液浓度和最佳闪爆工艺条件，得出在闪爆压力超过3.0MPa，保压时间为60s的条件下，软木纤维素可完全溶解于9％的NaOH稀碱溶液中，并且对助溶剂-硫脲对碱可溶纤维素/NaOH水溶液的增溶效果进行了研究和探索，同时也对溶解机理和闪爆机理进行了分析讨论。

Experiments of bioremediation and control were conducted with the alkali meadow grass planted in saline soil for 3 years. Contrasted with control group, topsoil desalination rate was up to 77.00%; pH value decreased 0.25 pH unit; soil bulk density decreased 0.14 g/m^3; total porosity increased by 5.29%; soil aggregate structure increased by 23.14%; soil water content increased 70.30 g/kg; average triennial alkali grass yield was 36000 kg/hm^2. In addition, planting forage in saline soil as a medium and establishing a compound agro-forestry-animal system promoted the sound combination of planting industry, forestry, and livestock husbandry. Because of the reasons, utilization ratio of land reached more than 184.00%; the income of land increased from 16300 to 35500 yuan/hm^2 average income per farmer in the controlling region increased by 66.00%, from 2160.70 to 1300.80 yuan.

生物修复与调控试验研究表明，草甸盐土经种植碱茅草3a，耕层土壤与对照相比脱盐率达77.00%，pH值下降了0.25个单位，容重降低0.14g/立方公尺，总孔隙度增加5.29%，团粒结构增加了23.14%，自然含水量增加70.30g/kg.3年生碱茅草平均产草量36000 kg/hm^2；盐化耕地采用以种植牧草为中介，将种植业与农区林业、畜牧业有机结合成互相依存，互相促进的农林牧复合生物系统治理后，土地利用率可达184.00%以上，可获得16300~35500元／hm^2的经济收入，治理区农户人均纯收入由1300.80元增加到2160.70元，增加了66.00%。

The its existence's subject matter one is pretreats system's efficiency not to be high, the flow is long, the effect is unstable; Second, the ion exchange resin needs the acid and alkali regeneration, discharges the acid and alkali waste water massively, the pollution of the environment.

其存在的主要问题一是预处理系统的效率不高，流程长，效果不稳定；二是离子交换树脂需酸碱再生，大量排放酸碱废水，污染环境。

For recoverying alkali, alumina and water from alkali waste water containing alumina, a process including dealuminium and electrodialysis is adopted.

采用碳分脱铝-电渗析工艺处理含铝废碱水，从中回收铝、碱及水资源。在脱盐性能考察完成后，研究该体系的浓缩性能。

Ceramic bearings can produce oxidation-ho, silicon carbide, silicon nitride and so on, diameter from 3mm-50mm, precision Machinable P0, P6, P5 level; its performance characteristics are: high temperature, oil-free self-lubricating, acid, alkali and salt corrosion , wear resistance, low noise, insulating diamagnetic, since high-speed operation; metal nano-ceramic bearing its production process for a new generation of high content of nano-particles in the heat and pressure infiltration of metal surface is activated to fill the cracks and pits the metal so that 3-5 micron metal surface is more smooth solid surface, greatly reduce the friction, improve Chennai base metals, and greatly increased the life span of bearings, and its characteristics are: long life (as an ordinary stainless steel bearings 2 -- 10-fold), low noise (as an ordinary stainless steel bearings, 70%), wear-resisting, acid, alkali, salt corrosion, high temperature, load large; ceramic bearing and metal nano-ceramic bearing design and development to meet the needs of the market for high-speed, low - noise, high load, the demand for corrosion-resistant; Machinery Production Department to produce aircraft rod end joint bearing, linear guide bearings, the fuel tank of earrings, plastic bearing, non-standard side bearing components, glass door hardware, such as high-precision control products; and provide CNC machining.

陶瓷轴承可生产氧化镐、碳化硅、氮化硅等，内径从3mm-50mm，精度可加工P0、P6、P5级；其性能特点为：耐高温、无油自润滑、耐酸、碱、盐腐蚀、耐磨、低噪音、绝缘抗磁、起高速运转；金属纳米陶瓷轴承其生产工艺为新一代的高含量纳米级微粒在热和压力的作用下被激活渗入金属表面，填补金属缝隙和凹坑，使金属表面3-5微米表面更光滑坚固，大大降低其摩擦力，提高金属的奈酸碱性，并大大提高了轴承的寿命，其特性为：长寿命（为普通不锈钢轴承的2-10倍）、低噪音（为普通不锈钢轴承的70%）、耐磨、耐酸、碱、盐腐蚀、耐高温、负载大；陶瓷轴承与金属纳米陶瓷轴承的设计开发以满足市场对高转速、低噪音、高负载、耐腐蚀的需求；机械生产部以生产机杆端关节轴承、直线导轨轴承、油缸耳环、塑料轴承、非标端轴承零部件、玻璃门控五金等高精度产品；并对外提供数控加工。

Benzyl ether is easy to condensed from benzyl chloride in the presence of alkali. In order to prevent production of benzyl ether, benzyl chloride must not contact with alkali.

由于氯化苄在碱作用下容易生成二苄醚，为了减少二苄醚的生成，必须避免氯化苄与碱的直接接触。

The effect factors of solid content, alkali, reaction temperature, reaction time, cross-linking agent, starch, polyvinyl alcohol, termination reaction point, resistivity against water, alkali washfastness on the performance of the adhesive for labeling beer bottle were investigated.

采用乾酪素、聚乙烯醇、酸变性淀粉为主要原料，制备改性酪蛋白啤酒瓶标签胶，讨论了固含量、碱、反应温度、反应时间、交联剂、酸变性淀粉、聚乙烯醇、终点判断、耐水性、碱洗净性等因素对酪蛋白商标胶的制备与性能的影响。

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