Part 1 describes essential tasks for system administration and operation of a healthy WebSphere Process Server production environment. It covers various approaches and tools.

第1部分介绍WebSphere Process Server系统管理的基本任务和正常作业环境的操作，包括各种方式和工具。

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This is essential because a drag-source is created for every drag operation, and not disposing of the older drag-source will lead to complications.

实际上这是因为为每次拖放操作都创建了一个 drag-source，我们并没有对原来的 drag-source 进行处理，这会使问题变得更加复杂。

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You could refer to these plug-ins as system plug-ins since they are essential to Eclipse's operation.

您可以把这些插件称为 系统插件，因为它们是 Eclipse 的操作所必需的。

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They will help a detachment of 41 British troops, who arrived in Skopje on Friday night, to establish a headquarters for Operation Essential Harvest.

BBC: More troops leave for Macedonia

Co-operation is essential because even the bigger EU countries do not have enough emergency supplies to deal with a large attack.

ECONOMIST: The enemy within | The

Canine co-operation has been essential every step of the way.

BBC: Paws 'Dogcam' aids search-and-rescue with canine tech