The complexation properties of them with alkali and alkaline earth metal ions have been investigated by means of visible spectra in solutions.
借助于可见光谱的测定，考查了它们在溶液中与碱金属和碱土金属盐等的配位性能。
The oxidative dehydrogenation of ethane to ethylene was studied over alkaline earth oxides promoted with alkaline metal chlorides.
报道了乙烷在以碱金属氯化物作为助剂的碱土金属氧化物催化剂上的氧化脱氢。
Because of high alkaline earth metal content, the reduction swelling of Baotou pellet makes blast furnace operation very difficult.
包头白云鄂博矿碱金属含量高，球团还原膨胀率高，给高炉冶炼带来很大困难。
应用推荐