... 一些没用的东西 » Useless stuff 蜂窝梁 » Cellular beam 简单的几句 » Just a few words ...
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cellular slab beam 空心板梁
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Steel-cellular concrete composite beam 钢
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When the downlink beam forming is applied in the wireless cellular network, the signals received by all mobile users must reach the provided signal to interference plus noise ratio.
在无线蜂窝系统中，当采用下行波束赋形技术时，所有用户所接收到的信号必须满足给定的信噪干扰比。
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