| 1. | A study on preparation of ultrafine by wet chemical method 化学沉淀法制备超细先驱沉淀物 |
| 2. | Chemically deposited printed circuit 化学沉淀印刷电路 |
| 3. | Ammonia - nitrogen removal from landfill leachate by chemical precipitation 化学沉淀法去除垃圾渗滤液中氨氮的试验研究 |
| 4. | Preparation of ultra - fine dibasic lead phosphite powder by precipitation method 化学沉淀法制备超细二盐基亚磷酸铅粉体 |
| 5. | Calcium silicate nanopowder preparaed by chemical precipitation method and its in vitro bioactivities 化学沉淀法制备纳米硅酸钙及其在模拟体液中的活性行为 |
| 6. | Mathematical model for treating electroless nickel plating wastewater by chemical precipitation and its application 化学沉淀法处理化学镀镍废水的数学模型及应用 |
| 7. | Crystal structure and ceramoc microstructure of powder samples are examined by xrd and tem . the mean grain size of the materials ranges from 10nm to 50nm by controlling the reaction concentration and annealing temperature 采用化学沉淀法成功地制备了纳米晶zno粉体,根据不同反应物浓度和热处理温度的选取,晶粒尺寸控制在10 ? 50nm范围内。 |
| 8. | The entire experiment result makes known , it is simple and practicable that prepare nanometer tio2 powder by means of chemical precipitation method in laboratory . it is interesting to realize industrialize production of nanometer tio2 powder 研究结果表明,化学沉淀法是一种制备纳米tio _ 2的简便易行的工艺,这对于实现纳米tio _ 2粉体的工业化生产具有重要意义。 |
| 9. | In this paper , six methods of ammonia - nitrogen wastewater physic - chemical denitrication treatment were infroduced , such as blow - removal , steam - abstraction , crystallization , chemical precipitation , chlorination and ion exchange . their mechanisms and engineering application were analyzed and studied respectively . several problems to be cared for in development and implemention of the wastewater treatment techniques were pointed out 介绍了吹脱法、气提法、结晶法、化学沉淀法、氯化法、离子交换法6种常用的氨氮废水物化法脱氮处理技术和工程应用情况,并指出了在开发和实施氨氮废水脱氮处理技术(工程)时需要注意的问题。 |
| 10. | It was also found that the discharge capacity of agcuo _ 2 modified by cnts at different discharge rate increased due to the decrease of the intrinsic resistance and pseudo - charge transfer resistance of active materials as obtained by electrochemical impedance spectra . at last , agcuo _ 2 / tio _ 2 nanotubes composite was prepared and its electrochemical 最后利用化学沉淀法制备了agcuo _ 2 / tio _ 2纳米管复合材料,对其电化学性能进行研究,结果表明, tio _ 2纳米管的掺杂明显改善了agcuo _ 2的放电性能。 |