That needs power, as well as frequent changes of the filter element as the pores fill up with bugs.

这个过程需要动力，也需要经常的更换滤芯，否则这些微孔就会被杂质堵塞。

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That needs power, as well as frequent changes of the filter element as the pores fill up with bugs.

这需要消耗电力，而且由于微孔上积满了细菌，滤水器元件也需经常更换。

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By 2013,Lithuania wants to have a new natural-gas power plant, but experts caution that this will not be enough to meet the country's energy needs.

VOA: standard.2010.01.01

But the point that he admits is all, in a sense, that Socrates needs; justice is not power alone, justice requires knowledge.

但他所承认的观点，就某种意义来说，即是苏格拉底想听到的;,正义并非仅是权力，正义需要知识。

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Does that sound like an agency that needs more power?

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For every additional item that needs electrical power, added battery capacity is needed, and both of those result in added thermal loading, which requires a more robust thermal control system.

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It's been one of those issues that conservatives rally around saying that it gives the president the power that he needs to cut spending.

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