流行的做法是实行安全闸，这种方法可以做到安全有效的单向数据传输，但是安全成本太高，硬件价格昂贵。
The prevalent method is to implement the safe floodgate, the safe and effective one-way data transmission method, but the safe cost is too high and the hardware costs too expensive.
现有LED显示屏控制系统以单向开路的方式进行数据传输，在任意一个传输通路上发生故障时，LED显示屏都不能正确显示。
The existing control system of LED display transmits data with unidirectional open circuit way, but if any one of transmission paths was on the event of failure, LED display would not show correctly.
数字媒体网络是以单向广播网络为主要数据传输形式的网络。
Digital media network is the one which adopts the unidirectional broadcast as the main data transmission form.
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