diametric

1.They are in diametric(al) opposition to each other.

他们彼此针锋相对。

2.in diametric(al) contradiction to sb.'s claims

同某人 的要求截然相反

3.It is suggested that the specific speed would be replaced by diametric ratio,and the new nameplate would be used.

建议比转速应为直径比所取代,并启用轮机新铭牌。