has dimension has unit 単位を持つ has value 値を持つ power vermogen 功率 P Power is the time rate at which work is done. It is a derived quantity in the International System of Units. Power is energy divided by time. power unit quantity 量 attowatt attowatt centiwatt centiwatt decawatt decawatt deciwatt deciwatt exawatt exawatt femtowatt femtowatt gigawatt gigawatt hectowatt hectowatt horsepower (boiler) horsepower (British) horsepower (electric) horsepower (metric) horsepower (water) joule per second joule per seconde kilowatt kilowatt megawatt megawatt microwatt microwatt milliwatt milliwatt nanowatt nanowatt petawatt petawatt picowatt picowatt power dimension solar luminosity terawatt terawatt ton of refrigeration watt watt