How much so is clear for platinum and palladium .

这一点在铂和钯上面体现得十分明显。

Platinum , iridium and the rest are expensive precisely because they are rare .

正因为稀有，铂、铱等矿物才价格不菲。

South africa is the world 's largest platinum producer and fifth-largest gold producer .

南非是全球最大的铂生产国，也是全球第五大黄金生产国。

Platinum roared to the front in early july and maintained its lead ever since .

铂价在7月初猛冲至最前位置，自那以来一直保持领先位置。

Miners arrested at the south africa platinum mine have been charged with murdering their colleagues .

在南非铂矿被逮捕的矿工已被指控犯有谋杀他们的同事罪行。