Where there is no public power grid, the PV systems currently operate cost-effectively, due to their low operating costs.
在没有公用电网的情况下,由于系统的低运营成本,就它们当前的表现来看这一系统的成本是可以接受的。
Deviations: a project is given a certain set of parameters within which to operate, such as cost and quality.
偏差:项目有给定的要操作的某个参数集合,例如成本和质量。
Zeo was previously available only in America, cost twice as much, and required a cumbersome 'reader' unit to operate。
佐伊最早是在美国应用的,花费是现在的两倍,并且需要一个笨重的东西来操作。
The goal was to test whether Internet stations could be set up, how much they would cost, and how long they could operate.
VOA: special.2009.02.16
It only helps them to bring down the cost of health care, government has to operate the system more efficiently than the market does.
它只能,降低医疗的费用,政府必须,比市场更加有效地运作。
Their cost is low. They are not difficult to operate.
VOA: special.2009.09.29
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