工厂的机械化大大减少了对手工劳动的需求。

The ___mechanization of the factory significantly reduced the need for manual labor.

农业机械化大大提高了粮食产量。

The ___mechanization of agriculture has significantly increased crop yields.

农业的机械化大大提高了生产效率。

The ___mechanization of agriculture has greatly improved production efficiency.