生炒螺球 Fried whelk with vegetable

螺旋形生长 spiral growth

螺丝生锈 screw rust ; rust on screw

爱迪生螺纹 edison thread ; Edison Screw

螺旋生长 spiral growth

爱迪生螺旋灯头 edison socket ; screw socket

水生螺菌属 Aquaspirillum

爱迪生螺口灯座 Edison screw lampholders

螺线生长 spiral growth