Compared with the East, however, the West faced a greater number of external threats along more permeable frontiers.(然而，與東方相比，西方在更容易滲透的邊界上面臨著更多的外部威脅。)

When Dr Hammond coated a Nafion membrane in this way it became less permeable to methanol but kept its ability to transport protons.(當(dāng)Hammond博士用這種方法給Nafion膜做涂層，它對甲醇的滲透性降低了但保持了輸送質(zhì)子的能力。)

The skin of amphibians is permeable to water.(兩棲動物的皮膚是透水的。)

The building is perceived as a large petrous and opaque volume placed over a transparent and permeable body.(這個建筑被認(rèn)為是建在一個透明的有滲透性主體上的一個巨大而不透明的巖石體塊。)

A new generation of gas-permeable lens, they allow oxygen into your eyes during wear, preventing your eyes from becoming dry and sore.(新一代的透氣型隱形眼鏡在佩戴時有很好的透氧性，可避免眼睛干燥和疼痛。)

The flow of fluids such as water through more permeable zones in a reservoir.(流體（例如水）經(jīng)儲層中的滲透率較高地帶的流動。)

Like the blood-brain barrier, this is only selectively permeable, keeping any toxins in the blood from reaching the delicate photoreceptors.(和血腦屏障相同，它是選擇性可透的，阻擋血液中的有害物質(zhì)進(jìn)入到精致的感光層。)

Bamboo has become a popular choice in durable, air permeable, soft fabrics, and is used to make bedding, underwear, blankets, bags, hats, and much, much more.(竹子已經(jīng)普遍用于制作耐用、透氣、柔軟的織物，并被用于制造床上用品、內(nèi)衣、毯子、包、帽子等等。)

Here's your semi-permeable membrane.(這是你的半透膜。)

It's going to get through this, if I've got a semi-permeable membrane, a Common situation, of course.(它將通過這個，如果我用的是半透膜，可通過但b不能，its,permeable,to,a,but,not,to,b。，通常的情況，當(dāng)然。)

Traditional gloss paints..aren't permeable to water vapour.