The point table (wells_pts) has a foreign-key relationship with the source table (wells).

点表（wells_pts）和源表（wells）之间有外键关系。

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Understanding these foreign-key definitions is key to understanding the mapping of EJB relationships.

理解这些外键的定义是理解ejb关系映射的关键。

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Early enterprise applications used database tables and foreign-key relationships between them to model entities.

早期的企业应用程序使用数据库表和表之间的外键关系进行实体建模。

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But some Democratic lawmakers contend the long-term key to defeating the insurgency in Afghanistan is not to send more foreign troops, but to speed training of Afghan security forces.

VOA: standard.2009.10.25

"It depends on what the Egyptians will do out of it and how they focus the investment foreign policy-wise in key spaces which are relevant to national security issues where Egypt has a greater chance of success."

VOA: standard.2009.11.03

Pervez Musharraf's military-led government in 2008, Pakistani military and intelligence has retained oversight over key foreign-policy and security matters.

WSJ: Pakistan Edges Toward First Democratic Power Transfer

Other key foreign-based players available are the team's captain Mohamed Kallon, Paul Kpaka, Ibrahim Kargbo and Kewullay Conteh.

BBC: Bangura set for Sierra Leone debut

The BBC's security correspondent Frank Gardner says Saudi Arabia generally prefers to conduct its foreign affairs through low-key, behind-the-scenes discretion.

BBC: 'Saudi weapons' seen at Syria rebel base