These volunteers are also building free protocols that enable legal access without shifting control to a last-mile access provider.

这些志愿者同时也编写一些免费的协议，使之合法接入而不用把控制权转移给最后一里的供应商。

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OpenSSH is a free implementation of the SSH 1 and SSH 2 protocols.

OpenSSH是SSH 1和ssh 2协议的免费实现。

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Highly attenuated laser pulses with Poisson distribution are used as single-photon sources and the BB84 and B92 protocols are used for free-space quantum key distribution.

在自由空间量子密钥分配中，单光子源采用具有泊松分布的高度衰减激光脉冲，量子密码术协议采用BB 84和B92协议。

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Yet a question remains over Microsoft's promise to give rival software-makers some cost-free, additional access to its software protocols.

FORBES: EU's Kroes Names Scientist To Track Microsoft

"Patients are free to leave the wards at their will and we have protocols for facilitating patients' movements to and from the wards, " he said.

BBC: Royal Liverpool University Hospital