单词	永用历
释义	永用历 yǒngyònglìpermanent calendar
随便看	critical absorption wave-length critical absorption wavelength critical abstract critical activity critical aggregation concentration critical aging critical altitude critical--altitude critical angle critical--angle critical angle of attack critical angle refractometer critical angle refractometry critical annealing critical anode voltage critical anodic current critical apparatus critical application value critical application value； cav critical appraisal skill critical appreciation critical approach experiment critical area critical assembly critical attenuation