ICMP USES the basic support of IP as if it were a higher level protocol.

ICMP使用IP的基本支持，就好象是更高级别的协议。

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This service is used by the next higher level protocol: the Internet protocol (IP).

高一级别的协议—网际协议(IP)使用这一服务。

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These entities are also part of the specification and form a layer on top of the wire level protocol: the AMQP model.

这些实体也是规范的一部分，形成了在线路层协议顶端的一个层级：AMQP模型。

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The level of gas is measured as part of the island's obligation under the Kyoto Protocol, which aims to cut the level of emissions produced around the world.

BBC: Guernsey greenhouse gas levels rise slightly

It is a normal business protocol to have a certain level of debt.

BBC: Too much is being made of Rangers' debt - Walter Smith

An attributional accounting protocol that relies on facilities-level GHG balances to report net CO2 uptake and track otherwise unregulated GHG emissions throughout fuel and feedstock supply chains.

FORBES: Rethinking Life-Cycle Fuel Regulations