semi-permeable

基本解释

Pressurized water is passed over a semi-permeable membrane which allows the passage of water molecules while rejecting the passage of larger ions.
受压水经过半渗透膜，使得水分子能通过，而更大的离子却不会通过。
The conventional method involves boiling and then distilling water. An alternative works by reverse osmosis, in which water is forced through a semi-permeable membrane.
传统技术用的是蒸馏，新兴的替代技术是通过迫使咸水通过一个反渗透薄膜以达到过滤。
This involves tapping both freshwater and seawater at the mouths of Norway’s many rivers and fjords, and diverting it to tanks on either side of a semi-permeable membrane.
这种技术的操作原理是：在挪威众多的河流与峡湾口抽取淡水与海水，然后将这些水资源输转到半透膜任意一边的储水库中。