查询词典 alkali

Superior corrosion resistance, no corrosion in acids、alkali and aqua regia.

具有优异的耐蚀性，各种酸、碱甚至王水都很难侵蚀它。

With the wet and dry air is not working, do not dissolve in acid, and even aqua regia does not dissolve, only soluble in molten alkali, ground and carbonates such as sodium oxide.

与干湿空气都不起作用，不溶于酸，甚至王水都不溶，仅溶于熔融的强碱、地氧化钠和碳酸盐等。

To restore the ability of chromium can be dissolved in sulfuric acid, hydrochloric acid and High-FE acid and release hydrogen, but also of pure chromium with aqua regia does not work, when there is the presence of halogen ions in the acid can not be long-term stability, high temperature with alkali, hydrogen sulfide, sulfur steam, phosphorus, ammonia, such as carbon monoxide and water vapor reaction of the corresponding compounds, in the high temperature reaction of silicon into the silicide also chromium, chromium alloys with many metals generate a wide range of industrial applications, such as chromium-manganese stainless steel is used extensively for chemical plants.

铬的还原能力强，能溶于硫酸、盐酸和高FE氯酸而放出氢气，但纯铬连王水也不起作用，当有卤素离子存在时，在酸中不能长期稳定，高温时能与强碱、硫化氢、硫蒸汽、磷、氨、一氧化碳和水蒸汽等反应生成对应的化合物，在高温下还能与硅反应成硅化铬，铬能与许多金属生成合金广泛在工业上应用，如铬锰不锈钢大量用于化工设备。

Theresults indicated that the aggregates in this experiment are all argillaceous carbonate rockscontained alkali reactive minerals such as chalcedony and dolomite.

结果表明，三种骨料样品均为粘土质碳酸盐，含有玉髓和白云石等碱活性矿物，具备AAR 发生的岩相特征。

The formula was sold to Alkali Neutralizer Company based in the Los Angeles area in 1947 where Ashford Formula was extensively specified by architects and engineers and used on all types of industrial floors and parking decks.

其配方在1947年被位于洛杉矶的"碱中和剂"公司收购，在那里A/F被建筑师和工程师指定并广泛地用于各种类型的工业地坪和停车区域。

An experiment was conducted to study the cold and alkali resistances of Atriplex canescen from Colorado, Wyoming, Utah, and California provenances, and superior provenance was selected in terms of cold resistance indexes.

对科罗拉多州、怀俄明州、尤他州和加利福尼亚州4个不同种源的四翅滨藜进行了耐碱性、耐寒性试验以及优势种源的选择。

It is focused on the discussion of process parameter such as temperature, reaction period, and substrate concentration in autoxidation of o-nitrotoluene in alkali system, and the yield of o-nitrobenzalhyde is 30% under optimum condition.

论文着重讨论了碱性条件下，氧气氧化邻硝基甲苯的反应，得出了温度、时间、底物浓度、氧气流量等一般工艺参数对反应的影响，得出在较佳条件下，邻硝基苯甲醛的收率可达30％左右。

It is focused on the discussion of process parameter such as temperature, reaction period, and substrate concentration in autoxidation of o-nitrotoluene in alkali system, and the yield of o-nitrobenzalhyde is 30％ under optimum condition.

氧气氧化邻硝基甲苯的反应，得出了温度、时间、底物浓度、氧气流量等一般工艺参数对反应的影响，得出在较佳条件下，邻硝基苯甲醛的收率可达30％左右。

The synthesis of Melia Azedarach L.oil using alkali isomerization technique was optimize by the central composite/response surface method for the purpose of improving its effective fraction,conjugated linoleic acid.

采用碱法异构技术，用响应面法优化苦楝籽油合成工艺，设计了影响其转化率的反应温度、反应时间和用碱浓度三个因素的二次正交组合试验，用SAS软件对实验数据进行回归分析，建立相应的回归模型，取得苦楝籽油合成共轭亚油酸的最佳合成条件，并进行氧化稳定性分析和新添加剂的加入。

In this paper, a quaternary ammonium salt of chitosan was synthesized and the factors affect on the solubility or degree of substitution of product, such as the concentration of alkali, the time of basification, the content of water in system, the time of dispersing and the method of adding epoxyproryltrimethylammonium chloride, were discussed in detail. The product was characterized by IR, DSC, TG and X-RAY diffraction. The effects of time, humidity and temperature on the gases permeability of the quaternary ammonium salt of chitosan film were researched.

本论文研究了壳聚糖季铵盐的合成反应，对碱化浓度、碱化时间、水的含量、分散时间和醚化剂的加入方式等因素对制备反应的影响进行了考察；应用红外光谱、DSC、TG以及X-射线衍射对产物进行了表征；探讨了时间、湿度和温度对壳聚糖季铵盐膜透气性的影响。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。