The absorption of ligustrazine is a first-order process with the passive diffusion mechanism.
川芎嗪在肠道的吸收呈一级动力学过程，吸收机制为被动扩散。
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。
A sampling method of passive diffusion tube for collecting formaldehyde in indoor air was established.
本文建立了被动式扩散管采集室内空气中甲醛的方法。
RESULTS: The absorption mechanism of oxymatrine complied with the passive diffusion and first order kinetics.
结果氧化苦参碱在肠道的吸收呈现一级吸收动力学特征且吸收机制为被动转运。
Drugs may cross a biologic barrier by passive diffusion, facilitated passive diffusion, active transport, or pinocytosis.
药物可通过被动扩散、易化被动扩散、主动转运或胞饮作用等方式穿越生物屏障。
The mechanism of gastrointestinal absorption of Berberine Hydrochloride is that the drug transfers to cell via passive diffusion.
药物在肠道内的吸收机制是被动扩散的方式。
The results showed that CPZ was well absorbed in the whole intestinal segments, and the mechanism of its intestinal absorption was passive diffusion.
实验结果表明：盐酸氯丙嗪在各肠段的吸收均良好，药物在肠道内的吸收机制为被动扩散。
CONCLUSION The transport of recombinant hirudin across xenopus pulmonary membrane was a passive diffusion process which was energy-independent and carrier-independent.
结论重组水蛭素经蟾蜍肺泡膜的转运是一个非能量依赖、非载体依赖的被动扩散过程。
CONCLUSION The transport of recombinant hirudin across xenopus pulmonary membrane was a passive diffusion process which was energy-independent and carrier-independent.
结论重组水蛭素经蟾蜍肺泡膜的转运是一个非能量依赖、非载体依赖的被动扩散过程。
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