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Compared to the some other reported glasses, it is indicated that the tellurite glass prepared in this paper has a better rare-earth Er3+ ions solubility and a lower energy transfer rate of cooperative upconversion, and is a beneficial glass host applied for broadband fiber amplifiers.

与报道的一些其它玻璃相比，本文研制的碲酸盐玻璃具有较好的稀土Er3+离子溶解性、较小的协作上转换能量转移速率，是一种比较理想的用于宽带放大的掺铒玻璃基质。

So these tellurite glasses may be good candidates for broadband optical window material.Different concentration rare earth ions doped different kinds of tellurite glasses have been done in our experiment.

透过光谱的结果表明这两个体系玻璃的光透过率较高，而且紫外吸收截止边较短，具有宽的透过窗口。

Obviously, for spectrum of Terbium, the Terbium ions are acting as...

临界距离以及基质离子直径大小对自敏化效应的影响。

FTIR results indicate that terbium ions coordinated with the carbonyl groups in polyurethane molecular chains.

红外光谱研究结果表明，铽离子与聚氨酯分子链中的羰基发生了配位作用。

In this paper, we study the synergetic effects of second ligands and luminescence enhancement effects of doping ions starting from the binary complexes of europium and terbium with inexpensive benzoic acid and its derivatives, and improve the luminescence of complexes step by step.

本文从比较廉价的苯甲酸衍生物配体与稀土铕、铽的二元配合物入手，研究第二配体的协同效应和掺杂离子的荧光增强效应，逐步提高配合物的荧光性能。

There are blue and green emission spectral series in the phosphors activated by three valence ions of Terbium.

三价铽离子激活的磷光体有兰色和绿色两个发射谱线系列。本文分析了这两个系列谱线的强度，随着激活剂浓度而变化的实验结果，发现在激活剂浓度达到一定数量之后，当继续增加激活剂含量时，兰色和绿色发射谱线相对强度的变化规律，和加入敏化剂的结果是一致的。

Only a fraction of the A ions are in tetrahedral sites.

只有一部分A离子处在四面体的位置上。

Al-MAS NMR spectra show that most of the aluminium ions are tetrahedrally coordinated before or after calcination.

AlMAS NMR谱研究表明，焙烧前后的样品，铝均为四配位环境，交换为氢型后有少量脱铝现象。

These compounds have particularly simple structures.1,3 The unit cell is primitive cubic, with metal ions at the cor- ners and the center, bridged by four cyanide anions to form an interpenetrating network of tetrahedrally connected tetra- hedra.

这些化合物有特别简单structures.1 3 晶胞是原始立方，与金属离子在心病净入学率和中心，桥由四氰化阴离子形成互穿网络连接四分四hedra 。

Preparation of trimanganese tetroxide by air oxidizing free divalent manganese ions;2. In this paper, the trimanganese tetroxide with high specific surface area was prepared by the oxidation of the manganese powder with the catalyst - ammonium salt,and the effected factors were discussed.

研究了以铵盐作催化剂，利用高纯度锰粉悬浮液通空气催化氧化来制备高比表面四氧化三锰，并讨论了各因素对实验结果的影响，确定了反应的最佳条件；并对产品进行了检测和表征，经XRD检测确定产物为四氧化三锰。

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。