By maintaining the same port density per rack unit, customers can speed up networks without redesigning the architecture.

通过保持每机架单元相同的端口密度，客户可以加快网络无需重新设计架构。

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The electrolytic density was measured by an electronic balance connected to computer port according to the Archimedian law with an error less than 1%.

采用电子天平与计算机串口相结合的测量技术，根据阿基米德定律确定电解质体系的密度， 误差小于1%。

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Based on the equivalent circuit model of a two-port optical receiver front-end, the relationship between the equivalent input noise current spectral density and the noise figure is analyzed.

根据光接收机前端等效电路模型，建立了噪声系数与等效输入噪声电流谱密度的关系。

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