皮革鞣制的创新不仅仅是技术问题,更是在尊重工艺的同时推动其发展。
我不是悲观主义者,我是一个受过悲观主义训练的乐观主义者。
The future of the paper industry lies in balancing tradition with cutting-edge technology.
A mathematician's work is never done; there are always new questions to ask and new mysteries to solve.