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被动扩散 [bèi dòng kuò sàn]
passive diffusion
- 被动扩散在被动扩散过程中，跨细胞转运依赖于溶质浓度梯度。
Passive diffusion : In this process, transport across a cell membrane depends on the concentration gradient of the solute. - 药物可经由脉络丛直接进入侧脑室脑脊液，再经被动扩散由脑脊液进入脑组织。
Drugs may enter ventricular CSF directly via the choroid plexus, entering brain tissue by passive diffusion from CSF. - 被动免疫小鼠组与控制对照组在肺部都有高水平的病毒含量，并有证据表明病毒扩散超出了肺部到了脑和脾脏。
In contrast, mice immunized with either FLA3.14 or FLA5.10 had a 10th to a 100th the leels of irus in the lungs -- differences that were significant at P=0.01 for FLA3.14 and at P=0.001 for FLA5.10.
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