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A novel phosphating processing that nickel salt, manganese salt, nitro acenaphthene and carboxyl group polymer were contained in self-made Zn system phosphating, was developed for electrophoretic coating.

在自制的低温锌系磷化液基础上,通过加入镍盐、锰盐和羧基聚合物,并以硝基苊为促进剂,研制出了一种适用于电泳涂装的低锌锰改性常温磷化工艺。

As template, aluminosilicate MCM-41 with high structure order was synthesized under neutral condition.

以低聚季铵盐表面活性剂作为模板剂,在中性条件下合成出结构有序的介孔硅铝酸盐材料MCM-41。

And then the effects of compositions on the mechanical performance, characteristic temperatures, thermal expansion and chemical stability of the glass were discussed. Researches on lead borate sealing glasses show that PbO/B2O3 ratio exerts the most important effect on glass network. ZnO is beneficial to stabilize the glass against devitrification . Bi2O3 has little effects on the sealing temperature, while it helps to adjust the thermal expansion coefficient of lead borate glasses in a definitive range. When 0.5~4 mol% GeO2 is introduced, the glass possesses the highest stability and lowest sealing temperature (400 ?C), which is desirable for low-temperature sealing.

通过对含铅的硼酸盐封接玻璃研究得出,PbO/B2O3比是影响玻璃网络最主要的因素;添加ZnO有助于增强玻璃的稳定性,抑制析晶;Bi2O3对高铅系列配方玻璃的封接温度影响不大,但可使铅硼系列玻璃体系的热膨胀系数在一定范围内可调;在高铅系列配方中,引入0.5~4mol%的GeO2可有效地抑制玻璃析晶,降低封接温度;最终获得了两种性能较好的低熔点铅硼酸盐封接玻璃配方,G3封接温度低达400℃,其PbO含量为54mol%左右,BL10玻璃的封接温度为440℃,但其铅含量大大降低,仅为36mol%。

The composi-tion of the seawater has changed rapidly since Phanerozoic, and the prolonged mineralogical changes of marine non-skeletal limestone and potash evaporates occurred in a phase on a 100-200 Ma.

结果表明:显生宙以来海水组分发生变化,经海相非骨骼灰岩和钾盐蒸发岩矿物学研究,发现这两种沉积岩长期以来连续变化,在"文石海"是MgSO4型蒸发盐,在"方解石海"是KCl型蒸发盐,从白垩纪晚期、第三纪早期的底部石盐溴含量及矿物学特征表明,此时处于"方解石海",古海水组分的特点是造成缺硫酸盐型钾盐矿床形成的物化基础;通过NaCl-KCl-MgCl2-H2O和NaCl-KCl-MgCl2-CaCl2-H2O两个体系相图的分析认为,当时所形成的成钾原始体系母液是高镁、低钾氯化物型的卤水,在母液蒸发过程中,由于原始海侵母液与残余高镁母液的掺杂作用,致使结晶路线直接从氯化钠区到E点母液或光卤石与氯化钠共饱线上,而没有通过氯化钠和氯化钾的共饱线,因而在矿体中氯化钾相很少或几乎不存在,由于外界CaCl2型水体的掺杂,使成钾母液进入光卤石相区,随着蒸发的进行,最终形成溢晶石矿物。

A group of acid soluble boiling stable proteinsin fig cells accumulated in alarge amount when treated by NaCl,and which was more in AH cell lines and under higher salt media,suggesting it might be an important factor in salt tolerance of fig cells.

此外,无花果细胞在盐胁迫下积累大量的酸溶热稳定蛋白质,而且AH细胞的积累量高于HO细胞,高盐度培养基中积累量高于低盐度培养基,表明可能与耐盐性有着重要关系。

With the salt effect theory, the influence of external-added salts (LiCl, NaCl, KCl, LiBr, NaBr, KBr, MgCl2, CaCl2, SrCl2) concentration on adsorption rate of benzoic acid by crosslinked chitosan resin in trinal system (acid + water + salt) is discussed.

利用电位法,跟踪观察交联壳聚糖树脂在不同环境体系吸附低浓度苯甲酸的行为,结合盐效应理论讨论了在三元体系中,LiCl、NaCl、KCl、LiBr、NaBr、KBr、MgCl2、CaCl2、SrCl2 9种外加盐对交联壳聚糖树脂吸附苯甲酸吸附速率的影响。

The phosphate, vanadate and bismuthate contained glasses are promising candidates for the substituting of the lead glasses currently most used by the electronic pastes.

磷酸盐、钒酸盐、铋酸盐玻璃体系是目前含铅低熔玻璃的取代物。

The Kalidium cuspidatum community was not stable and it preponderant tree was declining because of the lower index of species diversity and higher index ecological dominance.

盐爪爪群落物种多样性指数低,而生态优势度高,群落不稳定,盐爪爪种群处于衰败阶段,也是不稳定的。

The removal of arsenic from solution has relied mostly on precipitation and adsorption processes and it has been considered that arsenic is the oxidation state that leads to the most effective removal by precipitation since the simple metal arsenates generally have lower solubility than the arsenites, and also arsenate is more strongly adsorbed on certain substrates, but this is pH dependent.

从溶液中去除砷主要依赖沉淀和吸附过程,并且要考虑+5价砷是氧化态,会导致通过沉淀最有效去除砷,因为简单的金属砷酸盐比亚砷酸盐一般有更低的溶解度,并且砷酸盐在特定情况下有更强的吸附能力,但是这取决于 pH 值。

Quantitatively speaking, it means having a blood sodium concentration below 135 millimoles per liter, or approximately 0.4 ounces per gallon, the normal concentration lying somewhere between 135 and 145 millimoles per liter.

在正常人的血液中,盐浓度一般为135~145毫摩尔每升,相当于每加仑血液含有0.4盎司盐。而低钠血症患者体内的盐浓度则要低于135毫摩尔每升。

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