油纸

This article introduces the application and effect of flourine surfactant in oil-proof paper.

文介绍了氟面活性刑在防纸中的应用和使用效果。

I looked where she said to look: under rocks and boards and tarpaper, along paths and in fields.

我到她告诉我的地方找蛇：在岩石、木板、柏纸下，小路上和田野里。