首先，通过输入清单1顶部一行所示的命令，把Apache Pluto的公共密钥添加到您的公共密钥环。

First, add the Apache Pluto public key to your public key ring by entering the command shown in the top line of Listing 1.

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如果您还没有这么做，输入gpg——import samba - pubkey . asc将samba公共密钥导入到您的gpg密钥环。

If you have not already done so, type GPG — import samba-pubkey.asc to import the samba public key into your GPG key ring.

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位同步时钟信号的提取是通信系统中的关键部分，应用数字锁相环可以准确地从输入码流中提取出位同步信号。

Bit synchronous clock recover circuit is the key part of the communication system, it can exactly recover the synchronous signal from input data stream.

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