单词	球窠螺旋
释义	同BALL
随便看	threading machine threading slot threading tool thread insert thread-- inside thread; inside thread interlacing thread interval thread lace thread-lace scoria thread-lace-scoria thread-lace-scoriae thread-lace scoria (reticulite) thread lapping thread lease thread-- left-hand thread; left-hand thread length threadless threadless fastening threadlike thread-like molecule thread-like secretion thread line thread-line fishing