1·A novel double - cladding erbium - ytterbium co - doped fiber amplifier (EYCDFA) based on phosphate glass fiber is proposed.
提出了一种新的基于磷酸盐的铒镱共掺双包层掺铒光纤放大器。
2·In chapter one, at first, we simply outlined some reactions promoted by metallic ytterbium in recent years.
第一章，首先我们综述了近几年来金属镱促进的有机反应在有机合成中的应用。
3·The working principle of the sensor was analyzed, the machining technology of the ytterbium sensing element was developed and the structure of the sensor was reasonably designed.
对传感器工作原理进行了分析，研究出了镱敏感元件的加工工艺，合理设计了传感器结构。
4·The selection of electrode materials is very important to the process of electro reduction ytterbium.
用电解还原法分离镱的过程中，电极材料的选择对整个电解过程有着十分重要的影响。
5·National Institute of Standards and Technology researchers are developing atomic clocks based on the element ytterbium that could outclass cesium atomic clocks, which currently set the standard.
美国国家标准技术研究所的研究人员正在开发一种镱原子钟，这种原子钟可能比铯原子钟更好。目前的时间标准是由铯原子钟确定的。