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The mechanism of abnormal swelling caused by CaO is that Ca(superscript 2+) in crystal lattice of iron oxide accelerates the formation and growth of metallic iron whisker during the reducing procedure from wüstite to metallic iron giving abnormal swelling.

对CaO导致球团异常膨胀的机理进行了探讨：在浮氏体还原成金属铁的过程中，固溶于铁氧化物晶格中的Ca(上标 2+)会促进&铁晶须&的生成与发展，导致球团产生异常膨胀。

The analysis of the data has disclosed that the TZ(superscript +) values for the Changjiang River are higher than the mean values (1250 μEq) for all the rivers in the world, ranging mostly between 2000 and 3000 μEq and subordinately between 1000 and 2000 μEq.

数据分析表明，长江水系TZ高于世界河流1250μEq的平均值，主要介于2000~2003μEq之间，其次为1000~2000μEq。

In order to test heat-resistance of the graft copolymerization of sulphonate onto LV-PAC, the optimal reaction conditions of the graft copolymerization of AMPS onto LV-PAC were studied by using Ce(superscript 4+) as initiator.

为了探讨低粘聚阴离子纤维素接枝磺酸盐共聚物的耐温性能以Ce(上标 4+)为引发剂，研究了LV-PAC水溶液与2-丙烯酰胺－2-甲基丙烷磺酸接枝共聚反应的最适宜反应条件。

The Fe(superscript 2+) activated sulphonated carbon material prepared by the hydrothermal method exhibited remarkable catalytic performance for the degradation of methyl orange (the degradation efficiency could reach above 79%) and pH=2.4-3.2 in the reaction system was observed, which should be attributed to the introduction of SO3 H group.

反应过程中溶液的pH=2.4~3.2，在碳材料中引入-SO3H基实现了固体酸代替液体酸的目的。

SO(superscript 2- subscript 4)-TiO2/γ-Al2O3 solid superacid catalyst has good catalytic activity in the synthesis of other acetals.

SO(上标 2-下标 4)-TiO2/γ-Al2O3新型固体超强酸催化剂在其它缩醛的合成中也具有良好的催化活性。

Using TAV CP cDNA clones as templates, the reaction conditions such as Mg(superscript 2+ dNTPs, betaine and primers concentrations optimized and the sensitivities of LAMP and RT-PCR were compared in detecting TAV.

设计能识别TAV CP序列6个特定区域的4种LAMP特异引物，对MgCl2、dNTPs、甜菜碱等LAMP反应条件进行优化，利用新建的LAMP法检测TAV，比较LAMP和RT-PCR2种不同方法的检测灵敏度。

The geometrical structures of the three isomers of tetrazene molecule which had been proposed formerly were fully optimized at the B3LYP/6-311 +G(superscript **) level of theory.

在B3LYP/6-311+G水平下对四氮烯三种异构体分子的几何结构进行全优化计算。

Thus, the detriment effect of Cu(superscript 2+) of Trapa bispinosa Roxb. was resulted from disorder of physiological, biochemical metabolism and disorder of physiological metabolism.

以上结果表明，本试验过量Cu(上标 2+)的胁迫破坏了菱正常生理生化活动，并造成功能紊乱，最终导致菱的死亡。

The toxic effects of various concentrations of Cu (superscript 2+) 0, 0.002, 0.004, 0.006, 0.008 mmolL^(-1 were studied on chlorophyll content, chlorophyll fluorescence parameters, lipid peroxidation, antioxidant system and ultrastructure changes in leafs of Trapa bispinosa Roxb.

研究了不同Cu(上标 2+)处理浓度0、0.002、0.004、0.006、0.008mmolL^(-1对菱叶片叶绿素含量和叶绿素荧光参数、膜脂过氧化和抗氧化系统等的影响，并用透射电镜观察了其叶细胞超微结构的变化。

In conclusion, the mechanism of differentiation and apoptosis in NB4, K562 cells induced by tributyrin may associate with its up-regulation of acetylated histone and p21(superscript WAF1) mRNA level.

TB诱导NB4、K562细胞发生分化和凋亡的机制与TB引起细胞组蛋白高乙酰化和继而上调p21(上标 WAF1)表达有关。

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％。