seal together的用法和樣例：
例句
- When required in the occupational setting, tight-fitting respirators cannot be used by people with facial hair that interferes with the face seal.
如果工作人員的面部有毛發(fā)，由于毛發(fā)會(huì )影響面罩與臉部的密合，這類(lèi)人員就不能使用密合式呼吸器面罩了。 - Multiple sizes or alternative facepiece designs can provide the individual with additional options for obtaining a good fit and seal.
不同的號型或不同的面罩設計可以給使用者提供更多選擇，取得良好的適合性和密合性。
