Chai hút chất bẩn trong hồ betta

http://www.youtube.com/watch?v=BryepQIZHzo Thử nghiệm với đồ chế

 

http://www.youtube.com/watch?v=BryepQIZHzo

 

bài viết hay, và mìh cũng xin góp ý rằng có thể thay thế ổng truyền nước bằng ống tiêm truyền trong y tế :d

 

Bài viết bổ ích, cám ơn bạn

 

thiết kế này hay, mình đã thử, rất hiệu quả,thanks for share

 

Vừa nhanh vừa tiện một công được lợi cả đôi đường

 

sáng tạo đấy, )

 

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