Aside from the libraries, you will also need the compiler itself and the associated tool chains.

除了这些库之外，您还需要编译器本身和相关的工具集。

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Developers who use scripts to publish Gems to RubyForge will probably need to update their tool chains.

使用脚本来讲Gems发布到RubyForge的开发者将可能需要升级他们的工具链。

youdao

This tool evaluates system (or sub-system) failures one at a time but can combine multiple causes of failure by identifying causal chains.

本工具将系统(或附属系统)的每次事故计数一次，但是该工具允许综合考虑造成事故的多重原因来确认事故发生的可能性。

youdao