The development and application of raw minerals and products of spinels are also briefly introduced.

石的其它应用，石轴承及颜料等也取得了较大的发展。

From all possible members of the spinel groups， hercynite and galaxite， were found to be the most efficient.

在所有可能的石矿族成员中，铁石和锰石被发现是最有效的(添加剂)。

It`s made from periclasite,magnesite aluminium spinel,chrome ore as raw material.

以方镁石、镁石、铬矿为主相的中性耐火制品。

The exoplanet's atmosphere condenses out minerals such as enstatite, corundum, spinel, and wollastonite.

这行星的大气冷凝后产生矿物，：顽火辉石、刚玉、石和硅灰石。

The composition, technique and characters about the manganite based NTC thermistor materials were reviewed in this paper.

摘要本文对含锰石列热敏电阻材料的组成、制备工艺和性能给予了评述。