Basis on chromatographic theory and solution theory, the retention equation of RP HPLC was derived.
根据色谱理论和溶液理论推导出反相高效液相色谱保留值方程。
2
According to the zero - growth theory of library collection, this paper approaches the retention period about the back number of periodicals in library.
摘要本文依据“藏书零增长理论”对图书馆过期期刊的保存期问题进行探讨。
3
The theory about point prescription, the depth of needle insertion, needling manipulation and the time for needle retention have different characteristics in different schools.