In data centers, fiber is used where high bandwidth, interference resistance, and long distance are required characteristics.

在数据中心内部，光纤用于必须具备如下特性的场合：高带宽、抗干扰、远距离传输。

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Both on a nanoscale, the results of each composite polymer materials makes the most of the structural materials demonstrated the required characteristics of both the strong and tough.

为材料带来很好的柔韧性。二者在纳米尺度上相互复合的结果使得大多数高分子材料表现出结构材料所需要的既强且韧的特点。

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The new bainitic steel formation and its required characteristics were obtained directly in the casting phase without any heat treatment, by the way of alloying and controlled cooling.

该铸态贝氏体钢通过合金化和控制冷却速度的方法，不需热处理而在铸态下直接得到贝氏体组织和所需性能。

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But while DARPA's "Terminator 2"-style morphing military robots may still be a long way off, many scientists are already working on robots that exhibit some of the characteristics required.

CNN: Robotics discovers its soft side

U.S. military planners spent the next 50 years revising and refining the requirements of deterrence, spelling out in great detail the performance characteristics required of U.S. nuclear forces to assure they were both survivable and credible.

FORBES: Nuclear Paradox: Shrinking U.S. Arsenal Requires Huge New Expenditures

Absent from this definition are any of the characteristics previously required for a Native American tribe to be recognized as such.

CENTERFORSECURITYPOLICY: The undoing of America?