单词	back-up ring
释义	back-up ring 支承环
随便看	sub-sampling subsampling of unequal clusters subsannate subsannation subsarcolemmal subsarcolemmal cisterna subsarcolemmal cytoplasm subsartorial subsartorial plexus subsatantia lentis sub-satellite subsatellite sub-satellite point subsatellite point sub-satellite point parameters subsatellite point track subsatellites sub-satellites sub-satellite track subsaturated subsaturating subsaturation subs' bench subsc. sub-scalding 剜肉生疮剜肉补疮剝剞剟剠剡剢剣剤ますかっとますからますがたますがた【升形（枡形・斗形）】ますきんぐてーぷますくますくめろんますげーむますこっとますこみ