查询词典 sulphate

The questing for acidic middle-temperature electroless Nickel technology leads to the preferable prescription as follows:Proportion of Nickel Sulphate and Sodium Hypophosphate 0.36; Sodium Acetate 15g/L; Stabilizer A lmg/L(Stabilizer B Img/L for continual experiment); Composite complexing agent Lactic Acid 10ml/L and acetic acid 10 ml/L; Accelerator organic acid G 6g/L; pH value 5.0; Loading Capacity ldm2/L; Temperature 70C (Temperature 75C for continual experiment); Proportion of supplement for Nickel Sulphate and Sodium Hypophosphate 1:1.2; Testing the consumed ion of Nickel solution and supplement inspissations solution every 60min by the proportion of 15% fresh solution.

最后，通过研究得出最佳工艺配方为：硫酸镍与次亚磷酸钠的摩尔比为0.36；乙酸钠15g／L：稳定剂Almg／L(周期实验加稳定剂B10mg／L)；复合络合剂组合为乳酸10ml／L+冰乙酸10ml／L：促进剂为有机酸G6g／L；pH值为5.0；装载量为1.0dm~2／L；施镀温度为70℃(周期实验为75℃)：主盐与还原剂的添加比例1：1.2；每60分钟对镀后液进行镍离子浓度的测定并按镍离子的消耗量添加浓缩液，添加比例按开缸液的15％。

Thermal decomposition reaction kinetics of potash feldspar -calcium sulphate-calcium carbonate system added to sodium sulphate and sodium chloride was studied.

研究了钾长石-硫酸钙-碳酸钙体系加入硫酸钠、氯化钠的热分解反应动力学，结果表明硫酸钠可以有效促进钾长石的热分解。

Through the experiments on hydration of AH in the following sulphate（Li_2SO_4、MgSO_4 、 Al_2(SO_4)_3 、MnSO_4 、CuSO_4 、CoSO4 、CdSO_4 、ZnSO_4 、NiSO_4 、FeSO_4）, dissoluble sulfate hydrate origining from hydration process of AH affects it's hydrous rate, hydrous rate of AH does not connect with Z/R of cation in stimulation, theory that Z/R affect hydrous rate of AH does not exist. Third, hydration of AH in dissoluble sulfate complies with dissolve-nucleate -grow theory, concentration of Ca~2+ from dissolving of CaSO_4 is higher than one of CaSO_4·2H_2O, calcium sulphate dihydrite gets a motivity of crystallization. dissoluble sulfate takes the following function: double-salt or dissoluble sulfate hydrate from hydration of AH in it becomes heterogeneous particle and a kind of nucleation catalyzer, and reduces surface barrier when DH becomes crystal because the crystal of DH precedently appears in uneven place. Results indicate hydration of AH does not conform with double-salt theory, but it conform with this mechanism: dissolve-nucleate-grow, formation of DH is an uneven nucleation and crystalizaion process.

通过对CaSO_4在Na_2SO_4 、K_2SO_4 、Rb_2SO_4 、Cs_2SO_4 、(NH_4)_2SO_4溶液中水化过程，以及CaSO_4·2H_2O、CaSO_4与以上硫酸盐反应速度、产物的研究，说明复盐理论不正确；CaSO_4在（Li_2SO_4、MgSO_4 、 Al_2(SO_4)_3 、MnSO_4 、CuSO_4 、CoSO_4 、CdSO_4 、ZnSO_4 、NiSO_4 、FeSO_4）溶液中水化，水化过程中硫酸盐水合物的析晶影响着无水硫酸钙水化，与激发剂阳离子Z/R值大小无关，阳离子的Z/R参数影响水化率的规律并不存在； 3、无水硫酸钙在可溶性硫酸盐中的水化按照溶解-成核-生长理论进行，CaSO_4达到溶解平衡时Ca~2+的浓度大于CaSO_4·2H_2O溶解平衡的Ca~2+的浓度，CaSO_4·2H_2O获得结晶的驱动力，可溶性硫酸盐起到形成晶核的作用：水化过程与CaSO_4生成复盐或析出水合物所形成的细小物相，作为异质微粒使母相中存在不均匀性，这些不均匀性有效地降低成核时的表面能位垒，使CaSO_4·2H_2O晶核优先地在这些具不均匀性的地方形成，因此这些物质起成核催化剂作用。

The main work of this thesis is to research the sulphate bath, we find that the sulfate system has the advantage of slight acidic choloride electrolyte system and alkaline zincate system. The solution of sulphate system is very simple and easy to maintain and high current efficiency. Furthermore, the technology has the advantage of lower plating cost and broader width of the temperature.

本论文的主要内容是以文献中报道不多的全硫酸盐体系电镀锌镍合金为研究对象，发现全硫酸盐体系结合了上述两种类型的优点，镀液成分比较简单，容易维护，对材料、设备的腐蚀比较小，阴极的电流效率高，而且该工艺具有成本较低和温度范围宽等优点。

The results showed that glucose,ammonium sulphate,magnesium sulphate and dipotassium hydrogen phosphate were the main affecting factors.

部分因子实验设计结果表明葡萄糖、硫酸铵、硫酸镁及磷酸氢二钾为影响Saccharomyces cerevisiae B5产生高选择性羰基还原酶的四个显著性因素。

They then left the transformation to complete itself, and it would nottake less than ten or twelve days for the sulphuret of iron to be changedto sulphate of iron and the alumina into sulphate of alumina, two equallysoluble substances, the others, flint, burnt coal, and cinders, not beingso.

硫化铁变成硫酸铁和矾土变成硫酸铝的过程至少需要十天到十二天，他们经过上述的安排以后，就让它自己去变化，不再照料了。硫酸铁和硫酸铝都能在水中溶解，可是其他如火石、焦炭、灰渣等是不能在水中溶解的。

It deliberated that magnesium sulphate and epichlorohydrin affecting on synthetization of starch xanthate, mass ratio of synthetic starch xanthate and Magnesium sulphate was...

研究了MgSO_4和环氧氯丙烷对DX合成的影响，得出淀粉和MgSO_4的重量比为8：1，淀粉和环氧氯丙烷的重量比为10：1，MgSO_4和环氧氯丙烷对黄原酸化程度没有影响，但能增强交联程度和不溶性。

According to the testing results of high-performance concrete in sulphate erosion environment at Nanjing underground railway project,a prognosticating model of sulphate-resistance erosion is established,which is based upon the disintegration law of concrete,and the project service life is prognosticated by using this model.

根据南京地铁工程高性能混凝土在硫酸盐侵蚀环境下的试验研究结果，初步建立了基于混凝土衰变规律的抗硫酸盐侵蚀耐久寿命模型，并对该工程进行了寿命预测。

For ammonium sulphate precipitation, ammonium sulphate with different concentrations was added to culture filtrate.

再后，论文根据现有实验室的实验条件，选择硫酸铵盐析、凝胶层析和CHT层析对角蛋白酶的粗酶进行了纯化。

So as long as the choice of the high grade size in 325m above barite powder, it can completely replace Barium sulphate precipitation, and can have better effects than Barium sulphate precipitated

所以只要选择品位高的粒度在325目以上的重晶石粉，就完全可以代替沉淀硫酸钡，而且可以起到比沉淀硫酸钡更好的效果。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。