柴油发动机是当今已知效率最高的原动机。
采草编成同心结,想要送给知音人。
A mathematician's work is never done; there are always new questions to explore and new mysteries to uncover.
Innovation in agriculture is not just about technology; it's about changing mindsets and embracing sustainable practices.
可持续性不是一种趋势——它是商业的新标准。