aliphatic monocarboxylic acid

例句：

1. 1. The oil is aliphatic and can be used as a lubricant.
   这种油是脂肪性的，可以用作润滑油。
2. 2. Aliphatic compounds are often found in the natural world.
   脂肪化合物通常存在于自然界中。
3. 3.The aliphatic structure of the compound is important for its properties.
   该化合物的脂肪结构对其性质至关重要。