To form a harmonious relationship between members, leadership must maintain knowledge coordination, behavior, solidarity and cooperation.

要形成和谐融洽的人际关系，领导成员之间必须保持认识一致，行为协调，团结合作。

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That includes the use of flight simulators and academic training to maintain basic skills and aircraft knowledge, Lingle said.

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Productivity Tools: document-centric tools used by knowledge workers to manage and maintain their work files.

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So when a leadership transition occurs in a family business, the new generation of leadership should be careful to maintain and build on the networks and knowledge of the former leaders, while expanding their own networks.

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