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機器人：氫氣引擎不會排放廢氣 只會排出水蒸氣 非常的環保 但是卻沒辦法普及化是因為有哪種缺點呢？ A、較難控制氫氣點火的時間 B、因為氫氣密度低燃燒空間較小 C、氫氣取得容易 答案是A，你答對了嗎？我們來看影片的解說。
#科學 #能源 #氣候 #科技 #自然
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: 23 min
發行: 2013-01
導演: 導演:瑪拉歐斯
片長: 48 min
發行: 2017-06
導演: 美國國家地理頻道 製作
片長: 24 min
片長: 22 min
發音: 英語
發行: 2019-04
導演: 史提夫斯潘格勒 主持
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