lime kiln

例句：

1. 1. The lime kiln is used to produce limestone.
   石灰窑用于生产石灰石。
2. 2. The lime kiln is a crucial step in the cement production process.
   石灰窑是水泥生产过程中至关重要的一步。
3. 3. The lime kiln is designed to efficiently convert limestone into lime.
   石灰窑设计用来高效地把石灰石转换成石灰。