But in relatively liberalised Britain gas is largely traded at spot prices set by current supply and demand.

但是在市场相对自由的英国，天然气以供需决定的市场价格进行交易。

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Spot prices are not an ideal way to capture the dynamics of supply and demand.

现货价并不是捕捉供需动态关系的理想方式。

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It is rare for investors to take physical delivery of commodities, so no raw materials are removed from the supply chain (another reason why investors are unlikely to affect spot prices).

对于投机商来说，他们很少进行商品的实物交割，因此并没有原材料被从供应链上取走（这是另外一个投机商不可能影响现货价格的原因）。

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Using the Memory Spot, medical supply company McKesson might enable pharmacists to guarantee against drug piracy with an authorization dot on the tops of drug containers, or aid elderly patients in following prescription guidelines via a reader on a pendant or a cell phone that accesses the dot on their pill bottles.

FORBES: Magazine Article

Using the Memory Spot, medical supply company McKesson (nyse: MCK - news - people ) might enable pharmacists to guarantee against drug piracy with an authorization dot on the tops of drug containers, or aid elderly patients in following prescription guidelines via a reader on a pendant or a cell phone that accesses the dot on their pill bottles.

FORBES: Dot's A Lot

The spot market was, and is, relatively thin, and with spot material in relatively short supply, buyers had to bid up price to quite high levels to establish positions.

FORBES: Uranium Market Glowing Green