| 单词 | osmotic pressure |
| 释义 | > as lemmasosmotic pressure osmotic pressure n. a measure of the power of a solution to draw solvent through a semipermeable membrane by osmosis, equal to the pressure that would have to be applied to the solution to prevent pure solvent from passing into it through the membrane. ΘΚΠ the world > life > biology > biological processes > movement > [noun] > diffusion through porous membrane > osmotic pressure osmotic pressure1888 1888 Jrnl. Chem. Soc. 54 778 (heading) Osmotic pressure in the analogy between solutions and gases. 1930 Proc. Royal Soc. 1929–30 B. 105 566 All solutions were adjusted so that the osmotic pressure was equal to that of sea water. 1970 E. J. Ambrose & D. M. Easty Cell Biol. ii. 83 A solution containing one gramme-molecule of non-ionizable solute in 22.4 litres exerts an osmotic pressure of 1 atmosphere at 0°C. 1992 Joiners' Q. No. 33. 31/1 It becomes even more difficult for the root system to develop the osmotic pressure required to maintain the transfers between roots and crown. < as lemmas |
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