If the system in question is a message in a series of digital bits encoded in the polarisation of light, this means that intercepting and reading the message can no longer be done surreptitiously.
如果所提到的系统是用偏振光的形式，以一连串数字比特流编码来表示信息的话，就意味着截取并阅读信息没法再偷偷摸摸地进行了。
An intercepting panel is arranged on the circumference of the light outlet of the reflector.
所述反射器的出光口的周向设有截光板。
An intercepting panel is arranged on the circumference of the light outlet of the reflector.
所述反射器的出光口的周向设有截光板。
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