... μ\n (N:rpm) = (1)公制馬力(PS) 4500 = πDN μ\\n (N:rps) D:直徑(m),N:迴轉速 ... 單位換算 1 HP = 550 ft-lb/s = 33000 ft-lb/min = 1.014 PS 1 PS = 75 kg-m/s ...
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