上标

While (superscript 4) He is the decay product of uranium and thorium, mainly concentrated in the continental crust, and is approximately proportional to the heat flux of crust.

由於铀、钍元素在大陆地壳中富集，(上标 4) He通量与地壳热流呈正相关关系；同时(上标 3) He通量与地幔热流之间呈正相关。

The total iron in iron ore was titrated by potassium permanganate standard solution with sodium diphenylamine sulfonate as indicator.

用HNO3-HF处理，硫-磷混酸溶解试样，在盐酸介质中，用二氯化锡－三氯化钛将Fe(上标 3+)还原为Fe(上标 2+)，以二苯胺磺酸钠为指示剂，以高锰酸钾标准溶液滴定铁矿石中的全铁量。

A dual cell system was used to study the relationship between time and electric quantity, dissolved Cu(superscript 2+), Fe(superscript 2+) and Mn(superscript 2+) ratio in the process of electro-generative simultaneous leaching and bio-electro-generative simultaneous leaching.

采用双电池体系研究发电浸出过程和生物发电浸出过程中放电量、Fe(上标 2+)和Mn(上标 2+)浸出率与时间的关系。

This paper proposes an efficient hardware architecture to speed up computing point multiplication for elliptic curves cryptosystem over fields GF2(superscript m, which mostly exploits the features of such elliptic curves and finite fields to deliver optimized special circuits for them.

提出了GF2(上标 m上的椭圆曲线点积加速器的一种有效的硬件设计，针对不同有限域GF2(上标 m及其上的椭圆曲线的特点，设计出较优的专用电路。

From the fact that the hydrogens of microbial methane originate in water, it may be deduced that with the reduction of HCO(superscript – subscript 3) a transfer of H atom occurs from the O atom to the C atom within HCO3 anions formed by the disassociation of dissolved CO2 in water, and furthermore, the formyl group forms.

由前人研究结果推断HCO(上标–下标 3)在脱去两个O原子的同时，可能发生了亲核重排，羟基H原子迁移到C原子上，形成了甲酰基HCO(上标-，使甲烷的第一个H原子来源于水。

The results showed that when the concentration of Pb(superscript 2+) was lower than 400 mg/L, effect on the germination root length, bud length, root weight, bud weight, the root activity and the proline content of the garden balsam were not obvious.

结果表明，当Pb(上标 2+)浓度低于400mg/L时，对凤仙花种子的发芽率、发芽势、幼苗的根长、芽长、根重、芽重、根系活力及脯氨酸含量影响不大，当Pb(上标 2+)浓度为800mg/L时，对凤仙花种子才开始表现出明显的抑制作用。

Results In 1344 isolates, Gram-positive and Gram-negative strains accounted for 31.92% and 68.08%, respectively.

1344株菌中，革兰氏阳性G(上标+菌占31.92%；革兰氏阴性G(上标-菌占68.08%。

Nicotianamine synthase gene has an important function in the Fe-deficiency response of graminaceous monocots, and it catalyzes substance to nicotianamine which plays an important carrier in the internal transport of Fe(superscript 2+) and other divalent metal ions. Nicotianamine can bind with Fe(superscript 2+) to form Fe(superscript 2+)-NA complex and protect plants from toxicity in acidic soil.

烟酰胺合成酶基因在单子叶禾本科的缺铁胁迫应答反应中起着关键作用，它的催化产物烟酰胺是铁及其他二价金属离子在体内吸收和转运的重要载体，且能与Fe(上标 2+)结合形成Fe(上标 2+)-NA复合物，从而使植物在酸性土壤中免受铁毒害。

The result of acute toxicity of Cd(superscript 2+) on antioxidant enzymes showed that along with the rise of concentration of Cd(superscript 2+), the activity of superoxide dismutase, catalase, and guaiacol peroxidase were changed in O.chinensis injected with Cd(superscript 2+).

对Cd(上标 2+)急性染毒的中华稻蝗抗氧化酶活性变化研究表明，随着Cd(上标 2+)浓度的升高，超氧化物歧化酶、过氧化氢酶、谷胱甘肽过氧化物酶活性均发生改变。

The relative molar concentration ratios of c(superscript * subscript NO)/c(superscript * subscript NO2) changes as the temperature and pressure change. These results reveal that the two competitive reactions of C-NO2 homolysis (to form NO2) and isomerization may occur during the fast thermolysis of DNTF. NO formation from the cracking of furazan or furoxan rings may be limited by pressure.

结果表明，DNTF快速热裂解的主要产物CO、CO2、NO和NO2的相对摩尔浓度c与温度和压强有关，通过分析相对摩尔浓度比c(上标*下标 NO/c(上标*下标 NO2)随温度和压强的变化，揭示了DNTF中碳硝基C-NO2存在均裂生成NO2和异构化生成NO两条竞争分解的可能途径，同时压强可能抑制呋咱环和氧化呋咱环生成NO的可能性。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"