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The ion-interaction parameters of HCl in 0.1-16.0 molality at 25℃ and the ions-interaction parameters of 2-spices and 3-species between H and M and among H、M and Cl were presented and evaluated.

本文报道应用Pitzer的离子相互作用模型，系统地对0.1-16.0 mol.kg-1浓度范围内HCl的活度系数和渗透系数值进行最小二乘法拟合，得到一套优于文献上报道的作用参数。

With these characteristic ions in the HRFABMS spectra,the molecular weight and formula of this kind of compounds could be obtained easily.

将 EIMS和 FABMS结合起来可以快速准确地获得化合物的分子量、分子式以及相关的取代酰基等结构信息。

Spectra of highly charged oxygen ions were measured using Spectra pro-500i monochromator equipped with CCD in the region between 200 and 300 nm.

1引言在波长范围270 nm~660 nm的氧的束箔光谱首次观测是Bashkin等人利用1和2 MeV的束能进行的[1，2]。

A surface-modified adsorbent is a support bearing at the surface of a chemically bonded "monomolecular" layer of adsorbing groups, which provides fast kinetics of the recovery and elution of the molecules and ions under study.5–9 SPE by use of alkyl-bonded silica gels has been widely applied in the environmental analysis of polyaromatic hydrocarbons, pesticides, substances of biochemical origin and other organic compounds.

表面改性吸附剂是一种载体，它负载在一层化学键合的单分子吸附性官能团的表层，为所研究的分子和离子的回收和洗脱提供了快速动力。使用含烷基的硅胶的SPE技术已经被广泛应用到芳烃聚合物、农药、生物成因物质以及其他有机化合物的环境分析中。

A surface-modified adsorbent is a support bearing at the surface of a chemically bonded "monomolecular" layer of adsorbing groups, which provides fast kinetics of the recovery and elution of the molecules and ions under study.5–9 SPE by use of alkyl-bonded silica gels has been widely applied in the environmental analysis of

表面改性吸附剂是一种在表面有一层化学键合单一分子层的吸附基团，吸附基团提供分子和离子的恢复和洗脱快速动力学。

A sufficient concentration of monovalent ions, such as ??

足够浓的一价离子象？？

The activation by monovalent ions is at least partially due to removal of the inhibition by an excess of Mg〓.

一价阳离子的激活作用至少部分是源于对高浓度镁离子抑制作用的拮抗效应。

And in the second scheme,we drive two ions with different laser beams,and then we map the motional mode st...

在第二个方案中，先用两束不同的激光驱动两个离子，然后把振动模的态映射到第三个离子上。

In combination with these experimental phenomena and theoretical analysis, the foam corrosion inhibition mechanisms in foam drilling are first put forward in the paper. They include: the adsorption of foaming agent on steel surface; the complex of foam-stabilized viscosifier with the multivalence metallic ions in formation water; isolating the steel from oxygen by foam; and fixing sands and reducing washout by foam.

结合实验现象和理论分析，首次总结提出泡沫钻井中泡沫的缓蚀机理，泡沫的缓蚀性主要在于：发泡剂在钢铁表面的吸附；稳泡增粘剂能与地层水中的多价金属离子络合；泡沫对氧的隔绝；泡沫能固定砂粒，减少冲蚀。

The unique behavior seems to be related to the charge characteristics of multivalent ions.

这种独特的溶胀行为似乎与高价离子电荷的正负性有关。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。