查询词典 ammonia

CuWO_4·2H_2O/Cu_2WO_4_2 precipitates were first obtained by adding aqua ammonia into a liquor solution containing natrium tungstate and copper chloride, then the solution was heated to remove ammonia.

将该复合粉压坯在H2 气氛中于不同温度下烧结后，对烧结体的微结构和物理、力学性能等进行了测试分析。

Nanosized W-Cu powder containing 20 weight percents of Cu was prepared by a homogeneous coprecipitation process,in which Cu2WO42 / CuWO4·2H2O precipitates were first obtained by adding aqua ammonia into a liquor solution containing natrium tungstate and copper chloride and heating the solution to remove ammonia.

采用蒸氨均相共沉淀法，即加热含有Cu2+和WO42-的氨络合物溶液，使氨蒸发，获得沉淀物，然后对沉淀物进行煅烧、还原，最终制得了含Cu量为20%的W-Cu复合粉。

Experiment for precision casting enterprise in the production process of ammonia emissions from wastewater, in order to better determine the operating parameters to achieve a reasonable construction costs and operating costs; unsuitable for biological treatment of ammonia nitrogen wastewater treatment will provide more choice; can be applied to similar waste water, a wide range of applications.

实验针对精密铸造企业在生产过程中所排放的氨氮废水，目的是为了确定较好的运行参数，达到合理的建设费用和运行成本；对于不适于生物法处理氨氮废水处理提供了更多的选择；可以应用到类似的废水，应用广泛。

The technological and engineering problems in recovering calcium chloride from evaporated waste ammonia liquid of ammonia-soda process was analyzed.

文章分析了高海拔地区回收纯碱蒸氨废液中氯化钙遇到的工艺技术和工程化问题，通过试验研究，调整工艺参数并对设备进行适当改造，实现了低成本、高品质生产设计要求。

On the basis of two-film theory, the mass transfer rate equation of SO2 of the ammonia desulphurization process was studied and the mathematical model of ammonia desulphurization in packed column was established to predict the absorption of SO2 from flue gas.

在双膜理论的基础上，通过对氨法脱硫化学反应过程的分析，研究了氨法脱硫过程中SO2的传质速率方程，并在此基础上建立了填料塔氨法脱硫的数学模型。

The experiment including the sheet copper and the sulfuric acid and the aqua fortis mixed acid response preparation cupric sulfate and to the test installation improvement, the cupric sulfate solution and the right amount ammonia water response obtained product appraisal, to the cupric sulfate solution and the ammonia water responded the preparation the sulfuric acid four ammonations copper carries on the composition determination.

实验包括铜片与硫酸和浓硝酸的混合酸反应制备硫酸铜及对实验装置的改进，硫酸铜溶液与适量氨水反应所得产物的鉴定，对硫酸铜溶液与氨水反应制备的硫酸四氨合铜进行组成测定。

Remove paint or asphalt etc besmirch, still with 10-20% of ammonia or ammonia use 2% of borax solution soaking, to dissolve again after washing.

白色棉及与棉混织的织品沾上铁锈，可取一小粒草酸放在污渍处，滴上些温水，轻轻揉擦，然后即用清水漂洗干净。

Wedgeplug O-Seal plug valves with their positive, no-leak features are not only recommended as the best general purpose valves for handling hydrocarbons, vegetable oils, solvents, etc., but are ideal for such tough service as butane, propane, butadiene, acetone, ethyl alcohol, ammonia, anhydrous ammonia, benzene, vinyl chloride, dry chlorine, Dowtherm, ethane, ethylene, hydrogen chloride, napthalene, oxygen, hydrogen, phthalic anhydride, dry phosgene, phosphoric acid, potassium carbonate, styrene, molten sulphur, sulphur dichloride and related services within a temperature range from -300oF to + 450oF within pressure limits of the valves.

楔塞O形密封旋塞阀具有积极的、无泄漏特性，不但是最好的通用的阀门，用于处理碳化氢，植物油，溶剂等，还特别适用于严酷的应用环境，如丁烷，丙烷，丁二烯，丙酮，乙醇，氨，无水氨，苯，氯乙烯，干氯，道氏热载体，乙烷，乙烯，氯化氢，萘，氧，氢，邻苯二甲酸酐，干碳酰氯，磷酸，碳酸钾，苯乙烯，融化硫，二氯化硫，以及温度在-184oC至232oC之间，压力在阀门额定压力等级范围内的有关应用。

Anhydrous ammonia or any other N fertilizer containing free ammonia is not normally suitable for sprinkler systems.

液氨或任何其它含游离氨的氮肥一般不适于喷溉系统。

Nitrogen fertilizer sources subject to ammonia volatilization losses are urea, urea-ammonium nitrate solutions, and anhydrous ammonia.

容易形成氨挥发损失的氮肥品种有：尿素、尿素-硝酸铵溶液和液氨。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失