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Negative radial electric field always associate with edge ion loss or separation of ions and electrons in same layer.

通过大量分析各种装置H-模的产生条件及其差异性，诸如装置磁场位形、等离子体与壁或限制器的间隙、第一壁条件、离子梯度磁场和曲率漂移方向等因素，研究它们与负径向电场或者说与边界离子损失的关系，认为在环形磁约束装置中电子基本上沿磁力线或磁面运动，而离子由于受梯度磁场和曲率漂移的影响大，有横越磁面的运动分量，会产生相对于磁面的扩张轨迹和压缩轨迹。

The boundary radii of atoms and ions of elements from first- to fifth-row in the periodic table are obtained.

所得原子边界半径具有明显的周期性，并与传统的原子半径具有很好的关联。

The number of charges on the resulting polymer ions is reduced to unity in a radioactive source.

在放射性源的作用下，所得的聚合物离子的电荷数减少至1。

A type of reaction propulsion engine to propel rockets in space a stream of positive ions is to a high velocity by an electric field .

推进火箭进入太空的一种反冲力发动机；在电域中正离子作。

A type of reaction propulsion engine to propel rockets in space astreamof positive ions is accelerated to ahighvelocity by an electric field .

推进火箭进入太空的一种反冲力发动机；在电域中正离子作加速运动。

A of reaction propulsion engine to propel rockets in space a stream of positive ions is accelerated to a high velocity by an electric .

推进火箭进入太空的一反冲力发动机；在电域中正离子作加速运动。

A of reaction propulsion engine to propel rockets in space a stream of ions is accelerated to a high velocity by an electric field .

推进火箭进入太空的一反冲力发动机；在电域中正离子作加速运动。

Short reaction time and low concentration of metal ions is the key to the good result.

较短的反应时间和较小的浓度为该实验的关键所在。

The influence of different conditions such as concentration of metal ions, temperature, reaction time etc.

研究不同反应条件如浓度、温度、反应时间等对实验结果的影响。

Sulfur dioxide removal from flue gas by catalytic oxidation containing transitional metal ions in aqueous solution has become an important research aspect in the sort of reclaimable desulfurization techniques, usually in which main byproduct H2SO4 is produced.

铁屑法烟气脱硫工艺及Fe催化氧化S动力学研究铁屑，烟气

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。