查询词典 chromium

Thus, a systematic study of the chromium-doped forsterite, both in theory and experiment, is of importance, not only to the explanation of the emission mechanism of the crystal, but also to the revaluation and utilization of the characteristics of Cr ions as well.

因而，从理论和实验上对Cr：Mg〓SiO〓晶体进行系统的研究，不仅对解释该晶体的发光机理，而且对重新认识铬离子的特性乃至发掘其潜力，都有重要的意义。

But if the intensity charateristics are taken into account, the former is the best model of the new optical center in the chromium-doped forsterite.

但考虑到其光谱的强度特征，本文认为前者是最合理的新发光中心模型。

ABSTRACT One of the new laser crystals drawing much attention in recent years is the synthetic chromium-doped forsterite, for which Cr ions...

人工掺铬镁橄榄石晶体是近年来受到重视的一种激光晶体，它能使铬离子实现新波段的激光运转。

M and 1. 12 ～1. 26μm, respectively. An equipment has been designed to make the three lasers operate. The equipment can be used in titanium sapphire and chromium－doped forsterite lasers for tuning over a larger range.

并设计了一个能利用同一装置方便地实现三种激光器的调谐运转；这一装置可以类似地应用于钛宝石激光器和掺铬镁橄榄石激光器中，实现范围更宽的可调谐激光输出。

ABSTRACT One of the new laser crystals drawing much attention in recent years is the synthetic chromium-doped forsterite, for which Cr ions can realize the laser operation in a new wavelength range reaching up to 1340 nm.

人工掺铬镁橄榄石晶体是近年来受到重视的一种激光晶体，它能使铬离子实现新波段的激光运转。

Xixia, the amount of ore contained in the Xixia King within 6.9 kilometers long, 2.1 kilometers wide region, the total ore reserves of 10 million tons, are Asia's largest open-air forsterite deposits, and with the coexistence of chromium ore.

西峡，此矿蕴含量在西峡景内长6.9公里，宽2.1公里的区域内，总矿储量达10亿吨以上，是亚洲最大的露天镁橄榄石矿床，且与铬矿共存。

Simple method is described to functionalize the surface and to modify the structures of multi-walled carbon nanotubes grown on silicon substrates using chromium trioxide (CrO3) solution.

bstract 采用铬酸溶液对碳纳米管进行后处理，旨在修饰碳纳米管的表面形态及改变碳纳米管的表面结构，进一步增强碳纳米管的场发射特性。

A simple method is described to functionalize the surface and to modify the structures of multiwalled carbon nanotubes grown on silicon substrates using chromium trioxide (CrO3) solution.

采用铬酸溶液对碳纳米管进行后处理，旨在修饰碳纳米管的表面形态及改变碳纳米管的表面结构，进一步增强碳纳米管的场发射特性。

A simple method is described to functionalize the surface and to modify the structures of multi-walled carbon nanotubes grown on silicon substrates using chromium trioxide (CrO3) solution.

采用铬酸溶液对碳纳米管进行后处理，旨在修饰碳纳米管的表面形态及改变碳纳米管的表面结构，进一步增强碳纳米管的场发射特性。

The trivalent chromium passivation film based on zincate plating obtained has compact structure with no obvious crack, and excellent anticorrosion performance. Different compositions are detected from the surface to inner film, the surface mainly contains Cr2O3-Cr3-ZnO compound, the inner (1030 nm to surface) composes of Cr2O3-ZnO-Zn.The forming process of passivation film possibly consists of four steps which are zinc dissolution, basic area appearance, gelatiniform film forming and converting to passivation film.

结果表明：锌酸盐镀锌层的三价铬钝化膜表面结构致密、无明显裂纹，具有较好的耐腐蚀性能；这种钝化膜表层与里层的组成不同，表层的组成为Cr2O3-Cr3-ZnO共混物；里层(离表层10~30 nm处)的主要组成为Cr2O3-ZnO-Zn共混物；钝化膜的成膜过程可能包括镀锌层的溶解、碱性薄层的形成、胶状膜的形成和胶状膜转化成钝化膜4个步骤。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。