adjective🔗Share密封的，气密的. Impermeable to gases"The laboratory technician carefully sealed the container to ensure it was gastight, preventing any of the hazardous gas from escaping. "实验室技术员小心地密封了容器，确保它是气密的，以防止任何有害气体泄漏。materialtechnicalscienceChat with AIVocabulary GamePractice Reading
