单词	a paper punch
释义	a paper punch 纸板打孔器
随便看	equal-potential screening equal-power highpower difference squeezing equal-power N-power difference-squeezing equal power unit equal practically equal-precise criterion equal precision equal precision frequency equal precision frequency measurement equal precision frequency-measurment method equal precision measurement equal-precision measurement equal precision observation Equal-Precisions equal predicate equal pressure equal pressure curve equal pressure method equal-pressure method equal pressure point equal pressure point,epp equal pressure point, EPP equal price issue equal principal equal principal and interest