passive membrane的用法和樣例：
例句
- Soilburial tests showed a good biodegradability of this hybrid membrane.
土埋實(shí)驗表明該雜化膜具有很好的生物降解性。 - It can form a layer of even crystal nucleus on the surface of metal.So can form membrane phosphide fast, and reduce treatment time.
可在金屬表面形成結晶均勻的晶核，使金屬表面活性均一化，加快磷化膜的形成速度，縮短處理時(shí)間。
