例句與造句

1. Abstract : to the principle and project that tu guangazhi proposed in 1990 , the gold ore deposits in qinling ( shaanxi ) may be classified into fouowing types : archean high - grade gneiss type , fine grained fragmental rock - carbonate rock - silicilith type , metamorphic fragmental rock type , volcanic rock type , explosive breccia type , intrusive rock exo - and endo - contact zone type . inthis paper , the geological characteristics , metallogenic geological setting , the source of ore - forming materials , digenic mechanism and metallogenetic epoch of gold ore deposits are also discussed
   文摘:參照涂光熾先生( 1990 )提出的礦床類型劃分原則與金礦分類方案，將陜西秦嶺地區(qū)原生金礦劃分為太古界綠巖建造型、細碎屑巖-碳酸鹽巖-硅質巖建造型、變質碎屑巖型、火山巖建造型、隱爆角礫巖型和侵入巖內外接觸型金礦，并對各類型金礦的地質特征、成礦地質背景、成礦物質來源、礦床形成機制及形成時代等問題進行了論述和討論。
2. It's difficult to find silicilith in a sentence. 用silicilith造句挺難的