富蘭克林的風(fēng)箏實(shí)驗(yàn)課件(nx)(編輯修改稿)
2024-12-24 00:40 本頁(yè)面
【文章內(nèi)容簡(jiǎn)介】 string____the cross so that you can ______the kite. Build frame light wood reach Tie to Add to tie to control paper wooden sticks string kite The next three steps are very important. First, ___a very sharp piece of ______,pointing a foot or more. Second,_______a key to the end of the long string. Third,____a silk ribbon ___the string, just above the key. This ribbon which must not____ ____,will________you _____the electricity. fix metal fasten tie to get wet protect from string sharp metal key kite wooden sticks silk rib
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