北斗星
這種像蜘蛛一樣的游泳車看起來像科幻電影中的東西
This spider-like Swincar looks like something out of a science fiction movie
Wimp.com

你有沒有用這種技術來過濾鹽水?
Have you ever used this technique to filter salt water? By Discovery
Discovery
載入新的回覆