{"product_id":"pulley-dynamometer","title":"STEAM DIY - Pulley Dynamometer","description":"\u003ch3 data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eSTEAM DIY系列-\u003c\/span\u003e滑輪組測力器\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003e認識三種滑輪\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e定滑輪 : 軸的位置固定不動, 可改變力的方向, 不能省力。 \u003c\/li\u003e\n\u003cli\u003e動滑輪 : 軸的位置可以移動, 不能改變力的方向, 可省力。\u003c\/li\u003e\n\u003cli\u003e滑輪組 : 由定滑輪和動滑輪組 裝而成,既可以省力亦可以改變用 力方向。\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKnow the three types of pulleys\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFixed pulley: The position of the shaft is fixed,\u003cbr\u003eThe direction of force can be changed, but effort cannot be saved.\u003c\/li\u003e\n\u003cli\u003eMoving pulley: The position of the shaft can be moved,\u003cbr\u003eThe direction of force cannot be changed, but effort can be saved.\u003c\/li\u003e\n\u003cli\u003ePulley block: consists of fixed pulley and movable pulley block\u003cbr\u003eIt is installed, which can not only save labor but also change the use of\u003cbr\u003eforce direction.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"31-Others","offers":[{"title":"Default Title","offer_id":45775512600804,"sku":"me-11206","price":48.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0405\/6186\/8963\/files\/me-11206_1.jpg?v=1731470128","url":"https:\/\/toylibrary.hk\/products\/pulley-dynamometer","provider":"Me100fun Toy Library","version":"1.0","type":"link"}