ground brace

 
  • 枕木

ground brace的用法和樣例:

例句

  1. The most important severe hazard risk is the ground contact condition which arises in transmission poles, fence posts and railway sleepers.
    危害木材最嚴重的情況,是在木材與地基接觸的條件下發(fā)生的,為通訊電桿,柵欄柱材和鐵路枕木。
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