常見例句An igneous rock consisting chiefly of pyroxene and nepheline. 霞巖主要由輝石和霞石組成的火成巖Top view park, in chongqing, WuDou frolic qiantang river, the huangpu river mouth nepheline mist. 恒山頂上觀天,錢塘江中弄潮,霧都重慶霧低,黃浦江口霞高。In this paper, the authors reviewed the development and research status of nepheline syenite in Gejiu in the last 44 years. 綜述了44年來個舊白云山霞石正長巖開發(fā)利用研究的基本情況。Wadeite is paragenic with aegirine, nepheline, arfredsonite, microcline and apatite, and associated with natrolite, rinkite and cancrinite. 與鈉沸石、層硅鈰鈦礦、鈣霞石等伴生.Using nepheline syenite as a substitute for feldspar,the batch mixtures were prepared on a composition of float glass and are melted into glasses. 以霞石正長巖取代長石,按照浮法玻璃的成份制備配合料并熔制玻璃。As a representative alkaline aggregate, nepheline was selected and the effect of it on the expansion of alkali-silica reaction was studied. 以霞石正長巖為代表,研究了含堿集料對堿-硅酸反應膨脹的影響。 返回 nepheline