• Since the new times, some armies writers have started to change their visions to the servicemen and extend their brushwork to a case of the whole servicemen and the depth of the human nature.

    时期以来军旅作家开始目光转向军人自身,把笔触伸向军人群体个案人性深处

    youdao

  • The axcion can produce a non-diffracting beam, and it is used to extend depth of field of optical imaging system, and the theorem of this method is analyzed in this paper.

    利用轴锥镜产生衍射光特性,分析了将应用成像系统增大景深的原理。

    youdao

  • The axcion can produce a non-diffracting beam, and it is used to extend depth of field of optical imaging system, and the theorem of this method is analyzed in this paper.

    利用轴锥镜产生衍射光特性,分析了将应用成像系统增大景深的原理。

    youdao

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