Using full vector orthogonal function model of the auxiliary air hole pattern of cut-off characteristics of optical fiber were discussed.

利用全矢量正交函数模型对空气孔辅助光纤的模式截止特性进行了讨论。

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The turn-off characteristics determining the maximum operating frequency of ultra-fast photoconductive semiconductor switches are influenced by many factors.

超快光电半导体开关的最大重复工作频率由关断特性决定，而影响关断特性的因素很多。

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But couples blessed with strength and aggression rather than looks are better off having boys, as these characteristics are of more use to males.

比起长相好的夫妇，那些体力更强、更有进取心的夫妇更容易生儿子，因为这些特质对男性更有用。

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Sweeney read for just under 20 minutes, ultimately rattling off the other defining characteristics her super-achievers share.

FORBES: Super-Achievers Call 'Community' The Real Secret Of Success

The radar sends radio wave pulses into the ice sheet, and the waves bounce off buried features, informing researchers about the characteristics of the snow and ice layers.

ENGADGET: NASA's GROVER eco-rover to examine Greenland's ice sheet (video)

"We considered over 30 designs and believe that the QSST is the only design that meets all the desired requirements including range, take-off and landing field length, take-off noise, emissions and sufficiently low sonic boom characteristics to enable supersonic flight over land, " he told CNN.

CNN: Bang goes the sonic boom