铁路运输是运输网的骨干和主体,是建设中国综合交通运输网的关键。
Railway transportation is backbone and subject of the transport network, is the key to building the comprehensive transportation network of China.
黑龙江水系的航运是东北地区综合交通运输网不可缺少的重要组成部分。
The shipping system of Heilongjiang river is the essential important component of the network of traffic and transportation of the Northeast China.
黑龙江水系的航运是东北地区综合交通运输网不可缺少的重要组成部分。
The shipping system of Heilongjiang river is the essential important component of the network of traffic and transportation of the Northeast China.
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