Fiber optics communications networks can carry digital signals, thus increasing communications speed and capacity.
光纤通信网络携带的是数字信号，因此提高了通信速度和容量。
In fiber optics communications, signals are converted to light form and fired by laser in bursts.
光纤通信时，信号转化为光的形式并由激光器发出。
In fiber optics communications, signals are converted to light form and fired by laser in bursts.
光纤通信时，信号转化为光的形式并由激光器发出。
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