Five haze-proof locomotives, which were designed to prevent haze-induced electric problems, have been sold to China Railway Corp., a rail-vehicle manufacturer announced.
The HXD3C trains, produced by a subsidiary company of the China CNR Co., Ltd, are able to work effectively even in foggy and hazy weather, China CNR said in a statement released on its website last Wednesday.
Heavy-metal particles suspended in hazy air can affect electric devices on top of the locomotives and even paralyze the trains' engine system, the statement said.
文中的haze-proof locomotive就是“抗雾霾火车头”的意思。haze-proof是由haze（雾霾）和proof（防、耐）合成的；locomotive解释为“火车头、机车”，是可数名词，复数形式是locomotives。常见的机车类型有steam locomotives 蒸汽机车，diesel locomotives 内燃机车和electric locomotives 电力机车。
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However, with the worsening pollution in recent years, cleaning the trains has become more difficult. 100HY