Whenever pages are mapped by a process, reverse mappings must be established for all of those pages.

当页被一个进程映射时，必须为所有那些页建立反向映射。

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The first level of trust that must be established is between the Client Connector and the Process Broker.

第一级的必须建立的信任是在客户端连接器和流程代理程序之间。

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To preserve context across pages, that context must be established in a place that is accessible to various components.

要为跨页面保留上下文，必须在各种组件都可访问的地方建立上下文。

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Continuity must be established between elementary and secondary school, which only 10 per cent of students attend.

UNESCO: MEDIA SERVICES

In areas covered by Regional Fisheries Management Organisations (RFMOs), "precautionary measures" must be established by the end of 2008.

BBC: NEWS | Science/Nature | Ban on 'brutal' fishing blocked

Clear and purposeful programmatic objectives and milestones must be established, including a decision now to build a useful prototype aircraft to fly by 1995.

CENTERFORSECURITYPOLICY: Save The National Aerospace Plane