标上

It was shown that the insertion of In into solid phase may proceed underpotential deposition mechanism involving two different routes: In(superscript 3+) reduction by induced effect of Cu3Se2, and/or reaction with H2Se. The newly generated In and indium selenides may be assimilated into the formation CuInSe2 by reaction with copper selenides.

研究结果表明，铟进入固相是通过In(上标 3+)受Cu3Se2诱导作用欠电势还原或者In(上标 3+)与H2Se反应这两种途径实现；先沉积的Cu3Se2与新生成的铟或铟硒化合物反应最后生成CuInSe2。

Three types of humic acids, i.e. peat, lignite and weathering coal (named as C-HA, H-HA and F-HA, respectively), were extracted and stability constants of Mn(superscript 2+) and Zn(superscript 2+) with the three humic acids were investigated.

以分别来源于草碳、褐煤和风化煤的腐殖酸为供试材料，采用离子交换平衡法研究了不同腐殖化程度的腐殖酸与Mn(上标 2+)和Zn(上标 2+)的络合稳定常数，并探讨了环境pH值对络合稳定常数的影响。

The experiment results indicate that higher phase splitting speed and extraction factor can be achieved when low-carbon alcohols such as n-butanol are used as organic solvents; by using five different N-carbobenzyloxy-L-amino acids as chiral ligands that are formated with Cu(superscript 2+) or Ni(superscript 2+), it is found that as a ligand, Z-Phe has a low extraction factor, while Z-Hyp, Z-Pro, Z-Glu, Z-Val have higher extraction factors, and among these, Z-Val has the highest distribution coefficient; pH value of extractant, when near to the PI of phenylalanine, helps to improve extraction resolution effect; temperature has no obvious effect on the resolution result.

结果表明：以低碳醇类正丁醇作有机稀释剂，所用5种N-苄氧羰基氨基酸（分别为Z-Phe、Z-Hyp、Z-Pro、Z-Glu、Z-Val）与Cu(上标 2+)或Ni(上标 2+)形成手性配位体后，以Z-Val作手性配体，萃取相pH值接近苯丙氨酸等电点时，萃取拆分效果最佳。

When Mg(superscript 2+) concentration increased, the fresh weight and dry weight of maize sad soybean decreased ,but they both showed some adaptability The growth of radicles and seedlings in maize and soybean were obviously inhibited by Mg(superscript 2+) and atrophy and dysplasia phenomena appeared.

随着Mg(上标 2+)浓度升高，玉米和大豆的鲜重和干重降低，但均表现出一定的适应性。玉米和大豆幼根和幼苗生长受Mg(上标 2+)抑制明显，普遍表现出萎缩、发育不良现象。

The total amount of N loss through ammonia volatilization was N 0.37~3.04kg hm^(-2), accounting for1.31%~3.69% of the total N applied to Winter Radish The total N loss through ammonia volatilization enhanced with the increase in N application rate (p.05) and ex-pressed as y=0.1576e(superscript 0.0146x) and y=0.1826e(superscript 0.0112x) respectively.

不同施氮处理，春季累计氨挥发量为N0.67~5.16kg hm^(-2)，占施入肥料N的0.74%~2.24%；秋季累计氨挥发量为N0.37kg~3.04kg hm^(-2)，占施入肥料N的1.31%~3.69%。红壤旱地春秋二季氨挥发量均随施N量的提高而指数递增，其关系式分别为：y=0.1576e(上标 0.0146x)和y=0.1826e(上标 0.0112x)。

The results indicate that the adsorption isotherms are well-fitted by the Freundlich models, and the pH values and initial concentrations are the main influence factors.

结果表明，吸附沉淀剂对Cu(上标 2+)、Pb(上标 2+)的吸附平衡符合Freundlich方程，pH值和初始质量浓度对吸附沉淀量的影响最显著。

Objective To investigate in vitro MRI detection of axonal transport for tracing optic nerve pathway and cerebral projection as well as effect of MnCl2 concentration in the vitreous body for transsynaptic crossing.

目的 探讨Mn(上标 2+)增强磁共振扫描对活体大鼠视觉传导通路及皮层投射的显示以及眼球玻璃体内Mn(上标 2+)的浓度对跨节转运的影响。

After dissolution, the Cr in samples was oxidized to Cr with KMnO4.Fe(superscript 3+) and Cu(superscript 2+) were masked with NH4HF2 and thiourea, respectively. In acid solution at pH 3.0-4.0, the I2 generated from the reaction of Cr and KI could form high-sensitivity blue complex with starch. The absorbance was measured spectrophotometrically at 590 nm.

样品溶解后，用KMnO4将Cr氧化为Cr，以NH4HF2掩蔽Fe(上标 3+)、硫脲掩蔽Cu(上标 2+)后，在pH3.0~4.0的酸性溶液中，Cr与KI作用后生成的I2遇到淀粉后形成灵敏度很高的蓝色络合物，此络合物最大吸收波长为590nm。

By using factor analysis method, the effects of Pb(superscript 2+), Cd(superscript 2+) on physiology of seedling trees of Yunhe Snow Pear were studied.

方法］采用因子分析法，研究Pb(上标 2+)、Cd(上标 2+)及其复合污染对云和雪梨苗生理机能的影响。

The research aimed to study the effects of calcium ions Pb(superscript 2+ and plumbum ions Cd(superscript 2+ on the physiological and biochemical indices of seedling trees of Yunhe Snow Pear to provide references for produce of Yunhe Snow Pear.

［目的］研究Pb(上标 2+)、Cd(上标 2+)及其复合处理对云和雪梨树苗生理生化指标的影响，为种苗生产提供参考。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷