0 Something, for example a cell membrane, that is semipermeable allows some liquids and gases to pass through it, but not others. -- （細胞膜等）半透性的，半可透性的
Occlusive dressings come as semipermeable films, hydrocolloids, hydrogels, foams, alginates, and powders, pastes, beads and gels.
In the semipermeable experiment 13-23% of seeds were buried apparently by dung beetles.
Massive callose accumulation is not a general feature of semipermeable layers in seed-covering structures.
These are semipermeable membranes manufactured principally for use in water purification or desalination systems.
Diffusion of crude natural gas through special semipermeable membranes and other barriers is another method to recover and purify helium.
Blood flows by one side of a semi-permeable membrane, and a dialysate, or special dialysis fluid, flows by the opposite side.
Another example of a semipermeable membrane is dialysis tubing.
A semipermeable membrane is necessary because it allows water through its membrane while preventing solutes from moving through its membrane.
