这样一种气体燃烧室的优点除其它优点 外还具有较大的动力功率范围，改进的火焰前缘和低的生产成本。
The advantages of such a gas bunner am amongst others a large dynamic power range, an improvadflame front and a low production cost.
1989年咖啡的价格跌得那么低，以致在许多国家还抵不上其生产成本。
In 1989 the price of coffee fell so low that in many countries it did not even cover the cost of production.
它把经济效率考虑在内——当我们从生产成本比我们低的地方购买东西时，我们就会从中受益。
It allows for economic efficiency, and when we buy things from places that have lower production costs than we do, we benefit.
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