Unlike other bats and trilling birds, the clear-winged woolly bat and its relatives did not switch to a more narrow-band call as they got to this super-fast calling level.

不像其他蝙蝠和啭鸣的鸟类，洁翼彩蝠和它们的近亲因为达到了超高速水平并不需要切换到一个更窄的波段来啼叫。

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It is indicated that the boron doping promotes the growth of (111) face of the diamonds, enhances acceptor level, narrow 's band gap and increases carrier concentration correspondingly.

其原因是硼元素的掺入促进了金刚石单晶的(111)晶面生长，使受主能级提高，晶体的带隙变窄，载流子浓度提高。

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The curves evolving method based on narrow band level set is studied and applied in segmentation of cardiac MRI in this paper.

文章研究了基于窄带水平集的曲线演化方法并应用于心脏的MRI图像分割。

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