Marley Fan Pitch Adjustment – X7 Fan

This is a multi-part module, consisting of one H3 fan pitch adjustment video, one X7 pitch adjustment video, and Ultra Quiet Fan pitch adjustment 视频。

看完每个视频后，请点击 “下一个” 点击按钮即可观看下一个视频。所有视频观看完毕后，您将完成一份包含十道题的测试。

Video 2 of 3: