The amount of soil aggregateon solonetz was 16.5% only,but after improving,it can reach 32.55%.

碱的团粒结构则更,16.5%,但经化学措施改良后也可达到32.55%。

This review summaries the application of ion exchangers in the separation and determination of alkali metals, alkali-earth metals, noble metals, rare earth elements and actinoid.

离子交换剂在萃取色谱中得到了广泛的应，本文详细总结了离子交换剂在分析化学中于碱金属、碱金属、贵金属、稀、锕系等的分离与测定。

When two different metals are placed in a fused alkali or alkaline-earth chloride bath, the more readily corrodible metal will deposit on the less corrodible one.

当两种不同的金属放在熔融的碱金属或碱金属氯化物盐浴中时,较易腐蚀的金属会沉积在较难腐蚀的金属上。

Abstract : When two different metals are placed in a fused alkali or alkaline-earth chloride bath, the more readily corrodible metal will deposit on the less corrodible one.

摘要 ： 当两种不同的金属放在熔融的碱金属或碱金属氯化物盐浴中时,较易腐蚀的金属会沉积在较难腐蚀的金属上。