单词	Davis' mouth gag
释义	Davis' mouth gag 医戴维斯开口器
随便看	ratio of affected needles ratio of age ratio of aggregates ratio of agricultural output value Ratio of air and fuel ratio of air to coal Ratio of air to water ratio of aisle space to total area Ratio of albumin and globulin ratio of alcohol and acid ratio of alkyl components ratio of aluminium to oxygen ratio of amendment Ratio of ammonium to nitrate ratio of amplitude ratio of amplitude to voltages ratio of a parallel projection ratio of apoptosis Ratio of applying ratio of Artemisia to Chenopodiaceae ratio of asset value to sales ratio of attendance ratio of attenuation ratio of audit fee ratio of automatic non-delay service