leak tight structure

• 密封结构

leak tight structure的用法和样例：

例句

1. It has novel seal structure and adjustable overflow weir plate.
   其新颖的密封结构，可调式溢流堰板。
2. Full-sealed structure can be used in the screening of powder, granule and mucilage.
   全密封结构可用于筛选粉，颗粒剂和粘胶。