sealed type

例句：

1. 1. The sealing process is crucial for the quality of the product.
   密封过程对于产品的质量至关重要。
2. 2. This new model has a sealed type design that is more durable and practical.
   这款新型号具有更耐用和实用的密封式设计。
3. 3.The sealing type of this product is widely used in various industries.
   这种产品的密封式类型在各行业中得到了广泛应用。