Theoretic analysis results show that the doping concentration and junction depth are main factors for the range of spectrum response of Si color sensor with double PN junction.

通过理论分析得出硅双结型色敏器件中掺杂浓度和两个结的结深是影响光谱响应范围的主要因素。

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The design, fabrication and properties of the ytterbium-erbium co-doped double-cladding fiber are reported, which is made by method of a combination of the MCVD and solution doping technique.

文中主要介绍了用MCVD工艺结合溶液掺杂技术制备铒镱共掺双包层光纤的设计、制作及性能。

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For every dopant has its advantages and disadvantages, results of recent studies show that double-donor doping and donor-acceptor codoping can improve the performance of the material remarkably.

由于各掺杂物的优缺点不同，近几年研究发现，双施主掺杂和施受主共掺能够很好的改善材料的性能。

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Bimes said organisers of the four Grand Slam tournaments had decided to double their funding of anti-doping policies.

BBC: Tennis steps up war on drugs