from where 和 from which 辨析区分？

The air then passes to a compressor, where it is compressed, and from which it is delivered to the combustion chambers.

在and from which it is delivered to the combustion chambers. 为什么不是from where ？用from which 和 from where究竟理解上有何不同？

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曾克辉 -

擅长：英语考试 | 采纳率 54% | 回答于 2020-11-24 16:35

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