单词	共电式交换机
释义	共电式交换机common battery switchboard
随便看	fractional expression fractional extraction fractional factorial design fractional factorial experiment fractional factorials fractional filtration fractional fixed point fractional frequency fractional frequency synthesis fractional fusion fractional gaussian noise fractional harmonic fractional horse power motor fractional horsepower motor fractional-horsepower motor fractional humidity fractional hydrolysis fractional ideal fractional increase fractional independent yield fractional integral fractional integration fractional integrator fractional ionization fractional ion yield