Asifa farzana
# 42: Now I learned how it work , thanks.
哦，原來風扇的馬達已經帶動齒輪運轉了。然後它只是連接到另一個齒輪上旋轉而已！我明白了。
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評論 4
- BLK
That's interesting. Never really thought how it rotated.
- Jay
Even I hadn't thought about it as well! It is interesting
