ballast pit

英 美
  • 碎石料坑,采石场
  • ballast n.压载物;压舱物;(铺铁路路基时所用的)石块;镇流器;稳定力量vt.给...装压舱物(压载物);使稳定
  • pit n.坑;矿井;陷阱;凹痕;(剧院的)正厅后排;(枣)核vt.使凹陷;使竞争vi.凹陷
    1. The practice indicated that evident benefits were obtainedwhen the forestry cableway was applied to the stone pit operations in specially difficult topographies.
      实践表明在特殊困难地形将林业索道用于采石场作业有明显效益。