Based on the instantaneous reactive power theory, the method of detecting reactive current of agricultural power network is studied.

基于瞬时无功功率理论，对农用电网无功电流的检测方法进行了研究。

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Agricultural run-off and pollution from power plants are adding extra nitrogen to many bogs in North America.

农业排水和来自发电厂的污染给北美的许多沼泽增加了额外的氮。

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Today, rivers are controlled for many reasons, primarily to maintain reliable water supplies for daily, agricultural and industrial needs, for power generation, for navigation, and to prevent flooding.

今天，河流控制的原因有很多，主要是为了维持可靠的水资源供应，以满足日常生活、农业和工业、发电、航行的用水需要，并起到防洪作用。

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Melting snow provides water for rivers,electric power centers and agricultural crops.

VOA: special.2010.01.05

Even quite sensible Russian politicians fear that the West's interest is to keep Russia as a place to extract minerals from and sell consumer goods to, rather than helping it become an industrial or agricultural power.

ECONOMIST: Western man��s burden

He proposes that local councils be given the power to buy agricultural land from farmers and then sell it, with planning permission, to developers.

ECONOMIST: The green belt is sacred. It should not be

While some people might not immediately associate blue-collar occupations with higher-level formal education, some of these managers and supervisors must have extensive knowledge of business or sciences to perform the tasks of, for example, power plant operator or agricultural manager.

FORBES: America's Best-Paying Blue-Collar Jobs