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。
The Eskimos produced a slow-burning spark by striking quartz against iron pyrites.
药物洗发精会有些帮助,如含有锌的硫化铁矿物质或含有硒的硫化物,甚至含有焦油和水杨酸的强力洗发精。
Medicated shampoos will help, including zine pyrithione or selenium sulphide, and even stronger shampoos containing tar or salicylic acid.
药物洗发精会有些帮助,如含有锌的硫化铁矿物质或含有硒的硫化物,甚至含有焦油和水杨酸的强力洗发精。
Medicated shampoos will help, including zine pyrithione or selenium sulphide, and even stronger shampoos containing tar or salicylic acid.
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