She was pointing at an enormous, gray spiral horn, not unlike that of a unicorn, which had been mounted on the wall, protruding several feet into the room.
她指着一只巨大的灰色螺旋形兽角，与独角兽的有些相似，它安在墙上，伸进房间几英尺。
The spiral horn of sheave and rotation speed had influence on sowing performance.
说明了槽轮的螺旋角度和转速对排种性能的影响。
The spiral horn of sheave and rotation speed had influence on sowing performance.
说明了槽轮的螺旋角度和转速对排种性能的影响。
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