The supplier guaranteed the impermeability of the shipping containers during the long ocean voyage.

供應商保證這些貨櫃在長途海運期間具有不透水性。

Our engineers will present test results on the roof's impermeability at Thursday's meeting.

我們的工程師將在週四的會議上報告屋頂不透水性的測試結果。

Customers often ask about the impermeability of our hiking backpacks before booking mountain tours.

顧客在預訂登山行程前，常會詢問我們登山背包的不透水性。