觀看人次：
770
機器人：你知道「奈米腳踏車」嗎？它是用了什麼材料，才能讓它的耐用度增加，而且還比較輕呢？ A、奈米碳管複合材料 B、特殊鋁合金 C、以上皆是 答案是C，你答對了嗎？我們來看影片的解說。
#科學 #能源 #自然 #科技 #氣候
分級:
片長:
發音:
發行:
導演:
分級: 普遍級
片長: 1 min
發音: 華語
發行: 2018-01
導演: 安偉民
片長: 22 min
發行: 2015-06
導演: 翰星傳播製作
片長: 46 min
發行: 2014-12
導演: 臺灣電視公司
片長: 28 min
發行: 2016-01
導演: 製作：百禾文化資訊有限公司導演：
片長: 23 min
片長: 48 min
發行: 2017-06
導演: 美國國家地理頻道 製作
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