There is little study on the selection of liquid of pre - filming after the acid wash by hydroxy ethidine phosphonic acid (HEDP).
羟叉二膦酸酸洗后预膜液选择较少有人研究,而适当预膜钝化是防止酸洗后金属表面返锈必要措施。
There is little study on the selection of liquid of pre - filming after the acid wash by hydroxy ethidine phosphonic acid (HEDP).
羟叉二膦酸酸洗后预膜液选择较少有人研究,而适当预膜钝化是防止酸洗后金属表面返锈必要措施。
Abstract A method is suggested to determine the absolute configuration of ent kaurene diterpenoids by analysing the circular dichroism spectral data of 13 hydroxy ent kaurenoids.
摘要通13羟对映贝壳杉烯二萜园二色散光谱数据分析,提出一种确定对映贝壳杉烯二萜绝对构型方法。
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