The wollastonite as the alkaliearthmetal silicate, helps the melt in the ordinary ceramic body the function, reduces the body the agglutination temperature.
硅灰石作为碱土金属硅酸盐，在普通陶瓷坯体中起助熔的作用，降低坯体的烧结温度。
2
The complexation properties of them with alkali and alkaline earthmetal 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。
3
By two alkyl halide with alkalimetal or alkaline earth metal polysulfides from condensation.