earth alkali metal的意思|示意

In this paper, the main research object is the alkali metal sodium, potassium, sodium and rare earth elements neodymium doped binary compound doped lanthanum manganese ceramic.

本文研究了一价碱金属钠、钾及钠与稀土元素钕二元复合掺杂的锰酸镧陶瓷材料。

Methods and recent development of isolation of structurally characterizable alkali, alkaline earth and lanthanide metal ketyl radical complexes were reviewed in the paper.

介绍了利用金属离子的配位作用捕获并分离重要有机反应中间体—— 自由基中间体的研究方法和最新进展。

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土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。

By two alkyl halide with alkali metal or alkaline earth metal polysulfides from condensation.

由二卤代烷与碱金属或碱土金属的多硫化物缩聚而成。

Orthophosphite ions produced by oxidation of hypophosphite in an electroless nickel plating bath can be removed by precipitation with an alkali metal or alkaline earth metal cation such as calcium.

在无电镀镍浴中因次磷酸根氧化而产生的亚磷酸根离子，可以通过碱金属或碱土金属阳离子如钙的沉淀作用而去除。

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。