但这一举措同时需要造价高昂的电网系统,使其将电力输送到远方的城市。
But this also requires costly power grids to carry the electricity to the distant cities.
而且更为重要的是,整个系统总造价相当经济。
But more importantly, the total cost of the entire system is economic.
该系统结构简单、造价低。
此系统不但造价低廉,且培训效果良好。
此系统不但造价低廉,且培训效果良好。
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