All pharmaceutical samples must be shipped in hermetic containers to prevent contamination during transit.

所有藥品樣本都必須以密封容器運送，以防運輸途中受到污染。

The supplier confirmed that the new packaging provides a hermetic seal for our coffee beans.

供應商確認新包裝能為我們的咖啡豆提供密封效果。

During the meeting, engineers explained how hermetic storage keeps sensitive components free from moisture.

會議中，工程師說明了密封儲存如何讓精密零件免於受潮。