diffusion knife

例句：

1. 1. This diffusion knife is perfect for cutting through tough materials like leather.
   这把扩散刀非常适合切割皮革等坚韧材料。
2. 2. The chef used a diffusion knife to create a delicate glaze on the cake.
   厨师用这把扩散刀在蛋糕上创作出细腻的糖衣。
3. 3. The diffusion knife was essential in the process of blending different flavors together.
   这把扩散刀在混合不同口味的过程中至关重要。