铁矿石价格加上中国的海运成本曲线由于供应紧张，上述交易。

Iron ore prices are trading above the seaborne plus China cost curve due to tight supplies.

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图5.1（c）中的供给曲线则只显示了供应某个特定数量的最低价格。

The supply curve in Figure 5.1(c) shows only the minimum price at which a specified quantity would be supplied.

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图5.1（b）中的供给曲线只能以这些方式中的一种来描述：表示特定价格上所供应的最大数量。

The supply curve in Figure 5.1(b) can be described in only one of these ways: as showing the maximum quantity that would be supplied at a specified price.

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