全站搜尋 電子雜誌搜尋

AD

不錯過知識訊息,立即加入國家地理官方X

Apr. 20 2020

漂浮屏障

  • Photograph by Gerd Ludwig, Nat Geo Image Collection

    Photograph by Gerd Ludwig, Nat Geo Image Collection

  • Photograph by Gerd Ludwig, Nat Geo Image Collection

    Photograph by Gerd Ludwig, Nat Geo Image Collection

  • Photograph by Gerd Ludwig, Nat Geo Image Collection

    Photograph by Gerd Ludwig, Nat Geo Image Collection

  • Photograph by Gerd Ludwig, Nat Geo Image Collection

    Photograph by Gerd Ludwig, Nat Geo Image Collection

  • Photograph by Gerd Ludwig, Nat Geo Image Collection

    Photograph by Gerd Ludwig, Nat Geo Image Collection

為了減少水分蒸發與抑制藻類生長,洛杉磯水電局將數以百萬計的黑球釋放到艾芬豪水庫(Ivanhoe Reservoir)中。

AUG. 2025

為動物緝凶

鑑識科學如何打擊野生動物犯罪

為動物緝凶

AD

熱門精選

AD

AD

Subscribe
立即訂閱
keyboard_arrow_up