Before you begin, make sure you have the necessary components to follow along.
在开始之前，确保拥有必要的组件。
This technology was originally only available on a desktop PC with several different necessary components.
这一技术原先只能在台式机上使用，且必须有几种不同组件的支持。
The paper is complete and contains all the necessary components.
结构完整，包含了论文的必要组成部分。
The paper is complete and contains all the necessary components.
结构完整，包含了论文的必要组成部分。
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