catenary ream less arch  悬链线无铰拱

cigarette paper in ream  令装卷烟纸

light ream  拉砂

lord ream controller  主令控制器

MPEG data st ream  MPEG数据流

multiple-instruction [stream] multiple-data ream  多指令多数据流

newsprint in ream  令装新闻纸

ream down  划眼

ream grab  抓泥机; 抓土机

ream out  扩眼; 铰大

under-ream  底孔钻; 扩展式扩孔器