1. tracklaying：tracked gravity incline 斜卷扬机道 | tracklaying 铺轨 | trackless pit 无轨露天矿
2. 铺轨的翻译
2. rail-laying：轨枕铺设 sleeper laying | 铺轨 rail-laying | 轨排组装 track panel assembling
3. track laying WESTBANK：track laborer WESTBANK 道班工 | track laying WESTBANK 铺轨 | track laying machine WESTBANK 铺轨机