retort grate

例句：

1. 1. The steel was retorted at high temperature to make it stronger.
   钢材在高温下进行回火处理，使其变得更强。
2. 2. The chef used a special method to retort the meat for flavor enhancement.
   厨师使用一种特殊方法对肉进行回火处理，以增强风味。
3. 3. The metal was retorted to improve its toughness and durability.
   金属经过回火处理，以提高其韧性和耐用性。