This tunnel is, in substance, a simple air flow bench with necessary test devices offering various controlled streams for experiments.
这种风洞实质上是一种简单的气流试验台，它通过配套的设备能为实验提供各种可控制的气流。
This tunnel is, in substance, a simple air flow bench with necessary test devices offering various controlled streams for experiments.
这种风洞实质上是一种简单的气流试验台，它通过配套的设备能为实验提供各种可控制的气流。
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