查询词典 precipitation

The microstructure evolution, precipitation behavior of carbonitride as microalloying element and its effects on deformation induced ferrite transformation of mild steels with various Nb, V content were investigated on a Gleeble 1500 thermechanical simulator through multi-pass thermo-compression in the temperature range of 820~790℃ to simulate the finish rolling process of plates.

在Gleeble 1500热模拟机上，通过820~790℃温度范围内的多道次热压缩变形模拟了中厚板的精轧工艺，考察了不同铌、钒含量的低碳钢的组织演变过程、微合金元素的碳氮化物的析出行为和对形变诱导铁素体相变的影响。

Using a technique of insoluble salt precipitation, the permeability of endodermal Casparian bands for Cu2+ was investigated in primary roots of soybean Glycine max L.

采用在根内生成有色铜沉淀的方法研究大豆初生根凯氏带对铜离子的通透性。

NH4(superscript +)-N in landfill leachates was enriched in catholyte by electrodialysis, then removed by chemical precipitation.

垃圾渗滤液中的氨氮通过电渗析技术富集到阴极液中，随后用化学沉淀法加以去除。

A two-step method of causticization and precipitation technology was used to revive spent caustic of ethylene cracking, and various conditions which affect regeneration efficiency of the reaction were studied.

采用苛化及化学沉淀两步工艺对乙烯裂解废碱液的再生进行了研究，考察了影响再生效果的各种条件因素。

The caustic was regenerated from the spent caustic in an ethylene plant which adopted precipitation with a oxide of transition metal and causticization.

采用过渡金属氧化物沉淀法和苛化法处理乙烯裂解废碱液得到再生碱液，考察了再生碱液循环使用的可行性。

When the causticization time was longer than 120min and higher than 80℃ with 1.1:1 of stoichiometric ratio, and the precipitation was longer than 30min at 80℃ with n:n(Na2S) being 1.45:1, the NaOH concentration after reviving was denser than 8%, and the revived caustic approximately had the same physical property and adsorption of CO2 as the new caustic.

结果表明：苛化反应温度大于80℃，反应时间超过120 min，n：n(Na2CO3)为1.1：1， CuO沉淀反应温度为80℃，反应时间30 min，n：n(Na2S)为1.45：1等条件下，再生后的NaOH含量可在8%以上，并且再生碱液的物性以及再生碱液对CO2吸收速率上与新鲜碱基本相同。

Chitosan-celite complex carriers with high magnetism were made using co-precipitation of chitosan with nanometer Fe〓O〓 and celite.

本文还采用壳聚糖同磁性纳米四氧化三铁和硅藻土共沉淀的简单方法，制备得到较强磁性的复合载体。

Penicillin V acylase from the crude culture filtrate of Fusarium oxysporum FP 941 was purified with a single band on non-denaturing electrophoresis by means of (NH4)2SO4 fractional precipitation, adsorption on, and elution from, celite, ion-exchange column chromatography with DEAE-cellulose, and Sephadex G-200 gel filtration chromatography.

通过硫酸铵沉淀、硅藻土吸附、DEAD-纤维素离子交换层析和Sephadex G-200凝胶过滤，由尖镰孢FP941培养滤液中得到了聚丙烯酰胺凝胶电泳均一的青霉素V酰化酶。

A method has been deviced to improve the form of the ceric iodateprecipitate by slow precipitation in homogeneous solution.

利用碘酸亚铈能溶解于稀酸溶液而碘酸铈则不溶的区别，先用过氧化氢把全部铈离子还原，再加入碘酸铵，然后进行氧化，使碘酸铈在均匀溶液中沉淀出来。3。

Nano-sized hydrous ceric oxide with an average diameter size of 70 nm and specific surface area 212 m g were prepared using sol-precipitation method in conjunction with ultrasonic dispersion.

采用溶胶沉淀结合超声分散处理的方法，制备平均粒径为70nm，比表面积为212平方公尺g^(-1)的纳米级水合氧化铈吸附剂。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。