Lưu ý: Bản dịch của mục này hiện đang được kiểm tra chất lượng, vì vậy một số nội dung tạm thời chỉ hiển thị bằng tiếng Anh.
Mục từ này chưa được dịch sang ngôn ngữ của bạn, vì vậy nội dung gốc được hiển thị bên dưới.
semipermeable
This term is primarily used in scientific and technical contexts, specifically within biology and chemistry. It describes a selective barrier that acts as a filter, distinguishing between substances based on size, charge, or solubility. The connotation is one of precision and regulation, emphasizing a controlled exchange rather than a total block or a complete opening.
In practical application, it is most frequently associated with cellular membranes and osmotic processes. While "permeable" suggests an open door and "impermeable" suggests a wall, "semipermeable" describes a sophisticated gatekeeper mechanism essential for maintaining homeostasis in living organisms.
Ý nghĩa
Ví dụ
The cell wall is a semipermeable membrane that regulates the flow of materials.
Is the membrane fully permeable or semipermeable?
I wonder if this synthetic filter is truly semipermeable.
Water molecules pass through the semipermeable layer via osmosis.
The kidney filters blood using a semipermeable barrier to remove waste.
We need a semipermeable material for this desalination experiment.
We need a semipermeable material for this desalination experiment.
The semipermeable nature of the skin allows some gases to diffuse.
A semipermeable membrane only lets specific ions cross over.