大秦线上运行的两万吨运煤列车长度可达7公里，由大功率电力机车牵引，大大降低了运营成本。

Along this line 20,000-ton coal trains can reach a length of over 7 km pulled by powerful electric locomotives over an extra heavy duty track and driving down operating costs.

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这条线路运行的标准货车有252个车皮、三个火车机车。

A standard freight train on this line has 252 carriages and three locomotives.

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与柴油机车相比，运行成本只有5%，电动车将很快成为一个看上去更可行的选择。

And with running costs as little as 5% those of diesel models, electric cars will soon start to look like a more viable option.

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