热离子的

We investigate the sheath structure of an electronegative plasma at steady state with the assumptions of cold positive ions and hot negative ions.

西北师范大学物理与电子工程学院，兰州730070研究了含有带正负电的冷离子和热电子的磁化等离子体系统。

The preparation of the nano-TiO〓 powder mixed with copper ions by hydrthermal method and the preparative condition of the ZnO nano-stick by gaseous phase deposition method were discussed in this chapter.

本部分研究了利用水热法制备掺杂铜离子的纳米TiO〓粉体和利用气相沉积法制备氧化锌纳米棒的制备条件。

The results indicate that in Er3+-doped niobic tellurite glasses, proper amount of B2O3 can be used as a mo-difier to improve thermal stability and spectroscopic properties of Er3+ ions.

结果表明，在掺铒碲铌玻璃中，适量的B2O3能较好地提高玻璃的热稳定性能和Er3+离子的光谱性质。

An electric current produced between two electrodes as a result of electrons emitted by thermionic emission .

一种由于热离子散射产生的电子发射而在两个电极间产生的电流。

Be produced in electron tubes is thermionic emission, in which advantage is taken of the fact if a solid body is heated sufficiently, some of the electrons it contains will escape from its surface into the surrounding space .

将固体加热到足够温度时，它所含的电子就有一部分离它所含的电子就有一部分离开表面，飞逸到周围空间中，，这种现象叫做热离子放射。电子管通常就是利用这种方法来产生自由电子的。

The zircon was dated by using the technique of single-zircon stepwise evaporation-deposition with a thermal ion mass spectrometry (Bernd Kober, 1986 and 1987). The zircon ages are 2.60-2.54 Ga for biotite-leptynite, 3.36-2.62 for mimatized leptite, and 3.53-3.08 Ga for quartzite from the iron formation.

用热离子质谱计双带源蒸发—沉积测定单个锆石晶体年龄的方法对弓长岭含铁建造中黑云变粒岩、混合岩化浅粒岩和石英岩中的锆石作了测定，获得了2.60—2.54 Ga，3.36—2.62 Ga和3.53—3.08 Ga等年龄数据。

In chapter three, we derived a KP equation for unmagnetized, hot, collisionless, and two-ion-temperature plasma with isothermal ions and adiabatic dusty fluid.

论文第三章研究未磁化、无碰撞、具有两种温度离子的热尘埃等离子体中的尘埃声波。

In the first chapter, a review is provided on the development and present state of liquid crystalline ionomer , blenlds and hybrids composite materials.

检索结果发现在液晶聚合物的末端引入对羟基偶氮苯磺酸离子的主链热致液晶离聚物尚未见报道。

It could obtain the best performance of flux, retainment of tea composition and flavor under such operate condition.

经过热加工的茶汤在蓊游离胺基酸、还原糖、catechin、EGCg、ECG比膜过滤还高，但在清除DPPH和螯合亚铁离子的表现上，却比膜过滤还要佳。

16Nm Mn-Zn ferrite nanoparticles were synthesized by a hydrothermal precipitation approach using metal sulfate solution and aqueous ammonia.

以金属离子的硫酸盐溶液和氨水溶液为原料，采用水热法制备了粒径为6~16nm的锰锌铁氧体纳米粒子。

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。