An upward trend is definitely in place for oil, and also for copper, silver and platinum, among others.

石油的上升趋势绝对已经形成，铜、银和铂等大宗商品也是如此。

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And the copper and platinum nanoparticles are thought to speed up the latter stages of the reaction.

通常认为，铜和铂纳米颗粒会加快这个反应的后一阶段。

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The researchers added a little nitrogen to their nanotubes and loaded copper and platinum nanoparticles onto the surfaces.

研究者们在他们的纳米管上引入了氮气，同时在纳米管的表面负载了铜和铂的纳米颗粒。

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Meanwhile, the net length of these accounts also fell for palladium, but rose for silver, copper and platinum.

FORBES: CFTC Data: Funds Pare Net Length in Gold On Long Liquidation

Speculators take the hot new money and bid for gold, copper, platinum.

FORBES: The Illusion Of Modern Money

The rise outpaces 0.3% gains in gold and copper, and platinum was higher earlier in the day even when gold and copper were in negative territory.

FORBES: Platinum Outperforming Other Metals, Lifted By South African Supply Concerns