本实验尝试使用尿素水溶液浸泡杉木根后再用水蒸气法提取杉木根精油。
In our experiment, essential oil was attempted to extract from fir immersed in urea solution.
诸如尿素和胍的离液剂能够将一些疏水化合物带入水溶液中。
Chaotropic agents, such as urea and guanidine are capable of bringing some hydrophobic compounds into aqueous solutions.
用动态渗透压法，在适量含盐的水溶液中测量聚电解质——尿素改性磺化酚醛(SPU)的分子量。
The molecular weight of Urea Modified Sulfonated Phenol Formadehyde Resin (SPU) was determined in its aqueous solution by dynamic membrane osmometry.
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