形容词是sealed，意思是封闭的，例如：
1、An aneroid is a sealed bellows which is sensitive to changes in atmospheric pressure.膜盒是一种密封的弹簧绉纹管，可以感受到大气压力的变化。
2、The floor is sealed to prevent water penetration.地板加了密封涂料防止渗水。
3、The body was sealed in a lead coffin.尸体安放在密闭的铅棺中。
seal的形容词形式
形容词形式是sealed，中文意思是adj. 封闭的，密封的
Fully - sealed sample piece is one of important parts of leak detection equipment and its leakproofness directly affects accuracy of measurement.
