...换性钙;交换性镁;钙镁比;黔南州 [gap=1652]Key words tobacco-growing soil;exchangeable calcium;exchangeable magnesium;Ca/Mg;the south of Guizhou Province ...
双语例句
1
发现钙、镁、镧离子交换的丝光沸石,在表现出较高活性的同时,还对二甲胺具有55%左右的高选择性。
It has been found that the Ca, Mg, la ion exchanged mordenites have both high activity and high selectivity toward dimethylamine with the yield of around 55%.