These tiny things form the base of the food chain and play an important role in the global carbon cycle.

这些微小的东西构成了食物链的基础，并在全球碳循环中发挥着重要作用。

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When a job runs on a registered base node or deployment manager, the user must have privileges that include the role required for that job.

当作业在注册基本节点或部署管理器上运行时，用户必须具有包括该作业所需的角色的权限。

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The administrator role is required for you to register or deregister a base node with the administrative agent.

需要管理员角色才能向管理代理注册或取消注册基本节点。

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Mr Pujol says that an independent Catalonia - often called the "Germany of Spain", for its high GDP and industrial base - could play a role in turning around the image north Europe has of southern Europe.

BBC: Catalan leaders seek independence vote, legal or not

When the Iraqi government decided early this year to take back the city with a joint Iraqi-American effort, the Brits remained at their airport base, where their role was largely that of spectators.

CENTERFORSECURITYPOLICY: The toothless lion

Even though the value of the Manta air base lies more in the realm of trade (as a cargo transit point) than in the military, the air base's current U.S. military role means the potential impact on Sino-U.S. military relations cannot be ignored.

CENTERFORSECURITYPOLICY: China displaces the U.S. at Ecuador's Manta Base