普通喷油器密封性检查。
共轨喷油器密封性检查。
检查冰箱的密封性，确保冷气不会从冰箱门里溜走。
Test the seal of your refrigerator to ensure cold air isn't escaping through the doors.
柴油机在使用中还必须经常检查进气管路和循环水路的密封性，如有破损或泄漏必须立即排除，避免酿成重大故障。
Often check tightness of air intake pipes and water channels during engine operation, if find some broke and leakage, remove it immediately to avoid serious damages.
相机还可以检查本身的密封性。
相机还可以检查本身的密封性。
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