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簡單機械

簡單機械. 簡單機械. 槓桿原理的應用 省力工具 --- 支點在中間. 簡單機械. 槓桿原理的應用 省力工具 --- 抗力點在中間. 簡單機械. 槓桿原理的應用 方便的工具 --- 施力點在中間. 簡單機械. 輪軸應用. 簡單機械. 輪軸應用. 簡單機械. 滑輪應用 --- 定滑輪. 簡單機械. 滑輪應用 --- 動滑輪.

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簡單機械

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  1. 簡單機械

  2. 簡單機械 槓桿原理的應用 省力工具---支點在中間

  3. 簡單機械 槓桿原理的應用 省力工具---抗力點在中間

  4. 簡單機械 槓桿原理的應用 方便的工具---施力點在中間

  5. 簡單機械 輪軸應用

  6. 簡單機械 輪軸應用

  7. 簡單機械 滑輪應用 ---定滑輪

  8. 簡單機械 滑輪應用 ---動滑輪

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