为了保持发射功率损失(我2R)和电压下降到可接受的水平，电压等级，必须长途输电高。
To keep transmission power losses (I 2 r) and voltage drops to acceptable levels, voltage levels had to be high for long-distance power transmission.
我们的确可能需要新的长途输电技术，不过相关技术现正长足发展中，而且，这技术将为北非国家带来一项宝贵的新收入来源。
We would need new long-distance power transmission but the technology for providing this is advancing fast, and the countries of North Africa would get a valuable new source of income.
我们的确可能需要新的长途输电技术，不过相关技术现正长足发展中，而且，这技术将为北非国家带来一项宝贵的新收入来源。
We would need new long-distance power transmission but the technology for providing this is advancing fast, and the countries of North Africa would get a valuable new source of income.
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