backfill [ˈbækˌfɪl]

例句:

• At last, some suggestions were raised for the concrete backfill mining.
  最后对具体的充填开采方法提出了建议.
  
• A systematical study is made of the stability of backfill in blasting.
  对爆破动载下充填体稳定性进行了系统研究.
  
• This article is good for promotion of backfill.
  本文对充填技术的推广,具有一定的参考价值.
  
• Not to mention the inconvenience of having to backfill the origin of this monstruously evolved Creator Being???!!
  来自SA
• During mine backfill and site cleanup, the company found a few areas where there was copper contamination.
  来自SA
• Backfill with topsoil, firm in, water well and mulch with plenty more organic matter around the base of the plant.
  来自THETIMES