它们都是钾和钙的铝硅酸盐类。
They are aluminosilicates of sodium, potassium and calcium .
主要的成分有钾、钠、铝硅酸盐。
The main ingredients are potassium, sodium and aluminum silicate.
重点对硅酸铝纤维、六钛酸钾晶须及气凝胶二氧化硅隔热材料的特点进行了综述，探讨了几种颇具前景的高效高温隔热材料。
The characteristics for a1umina- silicate fibre and K2Ti6O13 whiskers and SiO2 Aerogel are discussed in this paper. Several types of heat insulation materials with great prospect are suggested.
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