N a sheep between one and two years old with two permanent incisor teeth 长有两个永久性切牙的在一到两岁之间的羊 [AUSTRALIAN]
two-tooth difference二齿差
two-tooth sheep两齿羊
two-tooth-difference cycloid gearing二齿差针摆传动
two-flank tooth-to-tooth error range双面啮合相邻齿误差范围
N（名词） a sheep between one and two years old with two permanent incisor teeth 长有两个永久性切牙的在一到两岁之间的羊 [AUSTRALIAN]