DBRS

"This one is our report on the deal," he says, pointing to the much thicker of the two. "This little Doily underneath is the DBRs report."

他指着比较厚的一份说：“这是我们做的交易报告，下面这份桌垫一样薄的是dbrs的报告。”

Based on cavity quantum electrodynamics and physics of quantum well, the spontaneous emission spectra in quantum well micro cavity lasers with DBRs have been calculated.

应用腔量子电动力学和量子阱物理，计算了量子阱DBR微腔激光器的自发发射谱。

The spectral transmission characteristics of F-P cavity with DBRs as reflectors has been studied.

研究了利用DBR反射镜做为F-P腔镜面的光谱透射特性。

Secondly, we add a resonant cavity constructed by the top and bottom distributed Bragg reflectors ( DBRs) to the GaAs/ AlGaAs LED, the dependences of NIR photon extraction efficiency on the DBR parameters have been studied.

然后在GaAs/AlGaAs LED顶部和底部分别加上分布式布拉格反射镜（DBR）构成谐振腔，研究了DBR谐振腔存在时LED的光子出射效率。

Accordingly, the I-V characteristics of N and P type DBRs due to three kinds of current mechanisms: the drift-diffusion, pure drift and thermionic emission currents, have been analyzed theoretically.

并以此为依据，从理论上分别分析和比较了多子漂移扩散、纯漂移和热电子发射电流机制所起的作用。

Still, this month's53% stock-price drop could prompt some of Citigroup's trading partners to start'pulling away,'says Roger Lister, chief credit offer of credit-rating firm DBRS.

不过，信用评级机构DBRS的首席信用长罗杰·李斯特尔（Roger Lister）说，本月53%的股价跌幅可能促使花旗集团的一些交易伙伴开始对其敬而远之。