percolation

• 名词，指液体缓慢通过过滤介质的过程，也指用渗滤式咖啡壶冲泡咖啡的方法，以及为提取或净化而过滤液体的操作。

A noun referring to the slow passage of a liquid through a filtering medium, the process of making coffee in a percolator, or the filtration of a liquid for extraction or purification.

不可数

1. Filtration processB2formalscientific

   The slow movement of a liquid through a porous material or filter, often for purification or extraction.

   过滤过程

   • The percolation of rainwater through the soil helps replenish groundwater.
   • In chemistry class, we studied the percolation of a solvent through a coffee filter.
   • The percolation process is essential for removing impurities from drinking water.

   同义词filtrationinfiltrationleachingpermeationseepage

2. Coffee brewing methodB1informalculinary

   The process of making coffee by repeatedly passing boiling water through ground coffee beans using a percolator.

   咖啡渗滤冲泡法

   • The percolation of the coffee filled the kitchen with a rich aroma.
   • He prefers percolation over drip brewing for a stronger flavor.
   • The old-fashioned percolation method takes about ten minutes.

3. Extraction techniqueC1formalscientific

   The act of filtering a liquid to separate or extract desired components, often used in industrial or laboratory settings.

   渗滤萃取

   • The percolation of the solvent through the plant material extracted the essential oils.
   • Industrial percolation is used to purify chemicals in large-scale production.
   • The lab technician monitored the percolation rate to ensure efficient extraction.

   同义词extractionfiltrationinfusionleaching