diffusion passive的意思|示意

The absorption of ferulic acid is a first-order process with the passive diffusion mechanism.

阿魏酸在肠道的吸收呈一级动力学过程，吸收机制为被动扩散。

The model is divided into two parts which are LNG heavy gas diffusion and passive process.

模型分为两部分，LNG重气扩散阶段模型和被动扩散阶段模型。

TDD is the method that patching the drug on the skin, the drug molecules permeating through the skin into the subcutaneous capillary vessels by passive diffusion and enhanced diffusion.

经皮给药是将药物贴敷在皮肤外表面，依靠被动扩散或促进扩散使药物通过皮肤进入皮下毛细血管。

The results showed that percutaneous fluxes of 1 in pH7.4 phosphate buffer solution with anodal and cathodal iontophoresis were 230% and 45% of that of the passive diffusion flux respectively.

结果表明，1生理盐水饱和液阳极导入时的透皮速率是被动扩散的2．3倍，阴极导入时药物的透皮速率是其被动扩散的45％，说明电渗作用明显促进了分子型药物1的经皮渗透；

Presently, passive HTO samplers are being widely used abroad. It samples HTO in air based on the principle of gas molecular diffusion and permeation.

目前被动式氚取样器在国外取得了广泛的应用，它是基于气体分子扩散或渗透原理采集空气中氚化水蒸汽（ HTO）样品的一种方法。

A new detection tube for formaldehyde gas based on passive sampling has been developed according to the principle of the gas molecular diffusion and chemical adsorption.

新研制的甲醛被动式检气管是建立在气体分子扩散和化学吸收原理基础上的。