镁

It indicates that electrical conduction ofα- andβ-phases is not caused by transport of protons bounded at Mg tetrahedral position.

这表明镁橄榄石的导电可能不是由镁离子位置上的质子移动引起的。

On the basis of describing the patent technology of using titanium white waste acid to produce industrial grade magnesium sulfate, the market prospect of magnesium sulfate was analyzed.

在简述钛白废酸生产工业级硫酸镁专利技术的基础上，对硫酸镁的市场进行了分析，说明此专利技术既可解决钛白粉厂的环保问题，又有良好的经济效益。

EDTA titration is the one of classical methods which determines the contents of calcium and magnesium,but because of the complicated component in the scale ,the phenomena that indicator was blocked would produce when we titrate calcium and magnesium contents in the crystallizer scale ,using average screening agent can't solve the problem.

EDTA滴定法是测定钙、镁含量的经典方法之一，但由于积垢成分比较复杂，在测定煮糖罐积垢中的钙、镁离子时，产生指示剂封闭现象，使用常规掩蔽剂不能解决此问题。

The unfired magnesia-calcium brick has been developed and used in 90t LF refining furnace in centain steelplant.

以合成镁钙砂、电熔镁砂为原料，以无水树脂做结合剂，添加适量的添加剂，研制出了LF 精炼炉用不烧镁钙砖。

The results of weight-loss tests of many magnesium alloys containing different concentration Al and Rare earth elements showed that the effect by only adding aluminum to improve the corrosion resistance of magnesium alloys in sodium chloride solution was unstable.

不同铝和稀土元素含量的镁合金的失重实验结果发现铝元素对于改善镁合金在NaCl溶液中耐腐蚀性能的作用是不稳定的。

The novel vacuum furnace is employed in laboratory study. Compared with atmosphere magnesium carbothermic reduction furnace, this new one has the merits of high automation, easy manipulation and fine safety. Vacuum coking, vacuum carbothermic reduction process and magnesium vapory condensation process can be carried out in a furnace.

小型实验结果证明：还原温度升高，还原时间延长，氧化镁还原率增大，添加适量的氟化物对还原反应有促进作用；还原过程中真空度随时间的变化具有规律性，由此可以判断还原反应进行的速度与程度；真空中煤还原氧化镁的条件是：配料时保证C：MgO=3：1，并加入占总料重10％的氟化钙作为催化剂，尽可能的提高反应温度至1500℃以上，保温30～40分钟。

In this paper the weldability of magnesium was analyzed.

分析了镁合金的焊接特点和焊接性，指出了目前镁合金熔化焊接时的难点。

To understand the alloying effects of a heavy rare earth metal, ytterbium, in magnesium, two series of Mg-Yb and Mg-Yb-0.5Zr magnesium alloys were prepared using flux protection with Yb additions of 0.5, 1, 2, 3, 4 and 8 %, respectively.

为探讨稀土元素镱对镁的合金化作用，制备了Yb含量分别为0.5、1、2、3、4和8%的Mg-Yb和Mg-Yb-0.5Zr系列镁合金。

It includes the following steps: extract trivalent iron ion and divalent iron ion in water phase through organic extractant, get predecessor of; absterge it with secondary distilled water for2-3 times and get pure load metal predecessor of organic phase; mix organic phase of Mg2 and Fe3 with mol rate of 1:2 and introduce them into autoclave, add distilled water according to the rate of 3:1 or 4:1 of organic phase and water phase and airproof it, and then mix it fiercely, stripping with hydrothermal method at temperature between 200 degree C and 300 degree C and make them react for 2.5 hours; cool it to the room temperature under natural condition, separate liquid and centrifugalize it, absterge it with absolute alcohol for 2-3 times and dry it at temperature of 50 degree C for 30-180 minutes, then get product of magnesium ferrite.

包括如下步骤：通过有机萃取剂来萃取水相中的三价铁离子和二价镁离子，制得有机相前驱物；用二次蒸馏水洗涤2-3次，获得纯净的负载金属有机相前驱物；按照Mg 2 和Fe 3 摩尔比1∶2将有机相混合均匀后引入高压釜中，按照有机相与水相的比例为3∶1或4∶1加入蒸馏水，密封后，对溶液进行强力搅拌，水热反萃的温度在200-300℃之间反应2.5小时；自然冷却至室温，分液，离心分离，用无水乙醇洗涤2-3次，在50℃下干燥30-180分钟，得铁酸镁产品。

The activity of superoxide dismutase in the myocardial cells was determined by the diphenol method, plasma malondialdehyde content was measured by TBA assay, the culture medium LDH content was measured by the acetonic acid method, the intracellular calcium concentration was measured by fluorescence spectropho- tometer- The results was shown that aspartate-K.

结果显示，门冬氨酸钾镁能减少阿霉素中毒心肌细胞乳酸脱氢酶的释放量，降低细胞内丙二醛含量及游离钙浓度，同时可升高细胞内超氧化物歧化酶活力；结果表明，门冬氨酸钾镁可能通过抗脂质过氧化及逆转细胞内钙离子过负荷作用进而保护中毒心肌细胞。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。