kiln with movable roof

例句：

1. 1. The kilns withmovable roofs are used for firingpottery.
   这些带有可移动屋顶的窑炉用于烧制陶器。
2. 2.The kilns with movableroofs are essential for the production ofporcelain.
   这些带有可移动屋顶的窑炉对于生产瓷器至关重要。
3. 3. Thekilns with movable roofs are designed to protect the workers fromthe heat and dust.
   这些带有可移动屋顶的窑炉被设计来保护工人免受高温和灰尘的伤害。