The president alone betokened the national identity. 总统本身代表着一个国家的形象。
Study on Bright Tin-Lead-Bismuth Alloy Electroplating Technology with Methylsulfonic Acid Bath 磺酰苯胺甲酰基苯甲酸甲磺酸电镀光亮锡-铅-铋合金工艺研究
A new technology that the tin-nickel-copper alloy deposition can be electroplated in the citrate acid system bath was introduced. 研究了一种柠檬酸盐体系电镀锡镍铜合金新工艺。
The exposed silver halide is then converted to metallic silver by an agent in the developer. an acid bath used to stop the action of a developer. 在显影液中某种试剂的作用下,已感光的卤化银可转变成金属银。用于停止显影剂反应的酸性溶液。
Effects of Pulse Parameters on Silver Plating Properties of Sulfosalicylic Acid Silver Electroplating Bath 脉冲参数对磺基水杨酸镀液镀银性能的影响
Never seen acid bath photo-resist metal etch manipulation before? “从未见过酸浴的照片-抵制金属蚀刻操纵前”?
An acid bath used to stop the action of a developer. 用于停止显影剂反应的酸性溶液。
The printing plates were placed in an acid bath. 印刷盘被置于酸性溶剂中。
Viscose is then extruded through special orifices into an acid spinning bath to form cellulose fibers. 通过特制的孔将粘胶液挤出来,进入酸性纺丝浴中后便形成纤维素纤维。
Study on Bright Tin-Lead-Bismuth Alloy Electropla tin g Technology with Methylsulfonic Acid Bath 甲磺酸电镀光亮锡-铅-铋合金工艺研究
A Study on Dyeing Silk with Direct Dyes in an Acid Bath 直接染料酸浴染真丝的研究
Ag-plating on Reflector from Non-cyanide Acid Bath 反光板用无氰酸性镀银的研究
Fe Zr B nanocrystalline alloys were electrodeposited in an acid bath. 在酸性镀液中电沉积了FeZrB纳米合金。
Chrome plating in chromic acid bath containing the additives of rare earth element is a new kind of technology, which can reduce the concentration of the chromic acid, improve the property of the bath, and enhance the quality of the coating. Application prospects are promising. 在铬酸镀液中加入稀土添加剂能降低镀液的铬酸浓度、改善镀液性能、提高镀层质量,达到节约原材料、降低能耗、减少污染的目的,因而具有较好的应用前景。
The method can be applied to the determination of Cr(ⅵ) and Cr(ⅲ) in chromium plating bath and chromic acid passivation bath. 该方法可用于镀铬溶液和铬酸钝化液中Cr(Ⅵ)和Cr(Ⅲ)含量的测定。
The Study of Inert Anodes for Ni-P Electroplating in Phosphorous Acid Containing Bath 亚磷酸体系电镀镍磷合金时不溶性阳极的研究
Improvement on the Stability of HEDP Acid Bath for Electroless Ni-P Plating 提高HEDP酸性化学镀Ni&P槽液稳定性的途径
The results show that the coating obtained in acid bath is of microcrystal structure, belonging to medium phosphorous coating; 结果表明:在酸性镀液中获得的镀层是微晶结构,属于中磷镀层;
The dyeing ability of weak acid dyes for polyamide fibre can be improved, and dyestuff saving and economic benefits improvements can be realized by applying a certain quantity of rare& earth to the weak acid dyeing bath. 通过在弱酸性染色浴中加入一定量的稀土,可以增加弱酸性染料对锦纶纤维的上染,达到节约染料,提高经济效益的目的。
After chromic acid bath, such as Cr plating bath and chromate conversion solution, has been used for a long time, the quality of the products would be affected due to accumulation of metal ion impurities. 镀铬、钝化等铬酸槽液,经长期使用后,会积累金属离子杂质,影响产品质量。
Methods: By using chloroform as solvent, concentrated sulphuric acid as catalyst, 4-hydroxymethyl caged bicyclic phosphate was esterified with formic acid, acetic acid, propanoic acid, butyric acid, pentanoic acid and, hexanoic acid under bath heat, respectively. 方法:用氯仿作溶剂,用浓硫酸作催化剂,通过4-羟甲基笼状双环磷酸酯在浴温下,分别与甲酸、乙酸、丙酸、丁酸、戊酸及己酸发生酯化反应。
Cholride ions in acid copper plating bath were determined by nephelometry with OP emulsifier as stabilizer. 利用比浊法,以OP乳化剂作为稳定剂测定酸性镀铜液中的氯离子。
Sodium sulfate was extracted directly from the acid bath of viscose fiber by one step crystallization. 采用一步结晶法从粘胶纤维生产的酸浴中直接提取无水硫酸钠,产品符合GB6009-91二类一级品的要求。
The Research for Increasing the Stability of an Aqueous Sulphuric Acid Plating Bath for Depositing Tin Study on A New Type of Technology for Acid Plating of Zinc 关于提高硫酸型光亮镀锡镀液稳定性的探讨新型酸性镀锌工艺的探讨
Copper sulfate in acid copper plating bath was determined by spectrophotometry with EDTA as chromogenic agent. 用EDTA作显色剂,通过光度法测定酸性镀铜液中硫酸铜的含量。
Material Balance of Acid Bath System Used in Both Continuous Spinning and Centrifugal Spinning System 连续纺、离心纺酸浴共用的物料平衡
An Investigation Into the Mechanism of Directly Copper-plated Iron-steel substrates in Acid Copper Bath 钢铁件直接酸性镀铜的机理探讨
Through the water than the recalculation of the entire process, process was optimized, and equipment for the transformation of the corresponding design adjustment, completion of the viscose production in acid bath flash technology and equipment research. 通过对汽水比的重新计算,对整个工艺流程进行优化,并对设备的改造进行相应的设计调整,完成对粘胶生产中酸浴闪蒸工艺及其设备的研究。
Acid bath flash is the production of viscose staple fibre spun silk bath recovery key, affect the overall capacity of viscose rayon production. 酸浴闪蒸是粘胶短纤维生产中纺丝浴回收的关键技术,其影响着粘胶生产的整体能力。