narrow rail train是什么意思

用法例句

SDD_(1A) narrow gauge diesel-electric locomotive exported to Sudan;

出口苏丹的SDD_(1A)型窄轨电传动内燃机车

Research and development of new mine narrow railway sleeper;

矿用新型窄轨轨枕的研制

To counter the ore-body dispersion and the great number of ore-output translation of Ping-guo Aluminous Mine,this article describes how to plan the narrow-gauge railway.

针对广西平果铝土矿矿体分散、矿石运量大的特点，阐明了窄轨铁路运输方案的可行性。