acid-proof casting

例句：

1. 1. The engineer used an acid-proof casting to repair the damaged machine.
   工程师使用一种酸保护铸造来修复损坏的机器。
2. 2.The company is known for its high-quality acid-proof castings.
   该公司以其高质量的酸保护铸造而闻名。
3. 3.Acid-proof castings are often used in chemical processing plants to protect equipment from corrosion.
   酸保护铸造通常用于化学处理厂，以保护设备免受腐蚀。