词汇	ekaactinium
释义	ekaactinium n.类锕
随便看	variable-spacing encryption variable-spacing interferometer variable-span diffusion index variable-span diffusion indices variable span wing variable specification variable specific heat variable specific heat capacity Variable specific heats variable specific impulse variable specific impulse rocket variable-sped axle generator variable speech control variable speech control system variablespeed variable-speed chopper disk variable speed clutch variable-speed clutch variable speed cone variable-speed cone variable speed variable-speed variable speed adjustable pitch variable-speed adjustment variable speed and constant frequency