
好词典

源自拉丁语 'permeare'(穿过)+ 后缀 '-tion',17世纪进入英语。
❶ 指物质或气体通过渗透作用逐渐穿过另一物质的缓慢过程,常用于描述液体、气味等扩散现象。
“The permeation of water through the soil is essential for plant growth.”
(水分在土壤中的渗透对植物生长至关重要。)
“Scientists studied the permeation of oxygen through the plastic film.”
(科学家研究了氧气透过塑料薄膜的渗透过程。)
permeation rate — 指物质穿过屏障的速率,常用于材料科学或化学领域描述渗透效率。
“The permeation rate of this membrane is measured in milliliters per hour.”
(该膜的渗透速率以毫升/小时为单位测量。)