烟温很重要，在油炸时油在高温时候表面会升起一层薄薄的蓝色的烟，它会使油被分解成使人难消化的物质。

Smoking temperature is important when frying, if the oil has a slight blue smoke or haze rising from it then it is too hot and will begin to break down which makes it indigestible.

youdao

每个微滴都有一颗油核，周围包裹着一层薄薄的氰基丙烯酸正丁酯。

Each droplet has an oil core surrounded by a thin layer of butyl cyanoacrylate.

youdao

水面上浮有一层薄薄的油。

There was a film of oil on water.

youdao