1、The alkaline earth used therein is salt compound of magnesium and calcium.
所采用的優(yōu)選的堿土是鎂和鈣的鹽和化合物。

2、By two alkyl halide with alkali metal or alkaline earth metal polysulfides from condensation.
由二鹵代烷與堿金屬或堿土金屬的多硫化物縮聚而成。

3、The calculated results of energy gap on alkaline earth mixed halides are reasonable.
對堿土金屬復(fù)鹵化物的能隙進(jìn)行了計算，結(jié)果合理。

alkaline earth翻譯