short sleeper造句

• The practice of renewal of monolithic track bed with short sleeper in tunnel
  隧道内短枕整体道床改造工程实践
• Construction technology of short sleeper ballastless track with new type vibration reducing fastener
  扣件短轨枕轨道工程施工技术
• Hormonal changes triggered by darkness or other unknown biological effects from long sleep could be affecting survival , kripke says . but short sleepers may suffer other bad effects
  克里普卡说，黑暗或其他由长时间睡眠引起的未知生理反应会导致荷尔蒙发生变化，这会影响寿命。