rotary-drilling machine with coupling (hitch) for mining
【生活】旋转干草机（滚筒耙及翻晒机），制作干草（干草制作）
rotary haymaker (rotary-drum rake and tedder) haymaking (haying)
暂无补充释义。
相关词条
flow forming【机】;flow turning【机】;rotary extrusion【机】
letterpress roller rotary machine
rotary-type discharge control vane, rotary-type admission control vane
rotary disc, rotary table, turntable
rotary probability screen【矿】
rotary compressor【机】
multi-chamber rotary-drum furnace