Iron ores and concentrates, including roasted iron pyrites.
铁矿砂及其精矿，包括焙烧黄铁矿。
The Eskimos produced a slow-burning spark by striking quartz against iron pyrites.
爱斯基摩人利用硫化铁矿石击打石英获得缓慢燃烧的火花。
In Arctic North America, the Eskimos produced a slow-burning spark by striking quartz against iron pyrites, a compound that contains sulphur.
在北美北极圈地区，爱斯基摩人生产火星通过黄铁矿和石英对撞，产生一种化合物包含硫磺。
The work has researched in adsorption and desorption of iodine and technetium on brass ore, lead glance, rare-earth hematite, antimony glance, molybdenite and iron pyrites and so on.
本工作研究了黄铜矿，方铅矿、稀土赤铁矿，辉锑矿，辉钼矿，黄铁矿等六种矿物对碘和锝的吸附和解吸。
There were two pieces of quartz in that box, both of them carefully polished. They had been chipped into driftwood shapes. There were little sparkles of iron pyrites in them like flecks of gold.
盒子里是两块石英，两块都经过仔细琢磨，削成浮木的形状，石英中的硫化铁发出闪闪金光。
There were two pieces of quartz in that box, both of them carefully polished. They had been chipped into driftwood shapes. There were little sparkles of iron pyrites in them like flecks of gold.
盒子里是两块石英，两块都经过仔细琢磨，削成浮木的形状，石英中的硫化铁发出闪闪金光。
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