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所屬欄目：科技之光
所屬頻道：CCTV-10科教
年份：2011
展開全部
簡介：講述了最初誕生的軍用潛水艇，它裏面非常狹窄，並用腳踩動踏板前進，人只能在裏面呆25分鐘。後來隨著技術上的創新誕生了新的潛水艇。收起
潛水艇（下） 科技之光 20101010
潛水艇（上） 科技之光 20101009
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