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。

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.

youdao

如果该设置为空，那么使用将要写入的dom流的编码属性。

If that is null, then the encoding attribute of the DOM stream to be written is used.

youdao

这意味着仅知道高级消息流就可以对程序进行编码。

This means the program may be coded knowing only the high level message flow.

youdao