Work, Energy, and Power /What Is A Horsepower? [Part 12/20]
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Written by Thatcha Namnon
Monday, 15 February 2016 10:42
Explain what is a horsepower.
ที่มา : http://www.youtube.com อัพโหลดโดย Michel van Biezen
Last Updated on Monday, 15 February 2016 10:46
