ground brace

• 枕木

ground brace的用法和样例：

例句

1. The most important severe hazard risk is the ground contact condition which arises in transmission poles, fence posts and railway sleepers.
   危害木材最严重的情况，是在木材与地基接触的条件下发生的，为通讯电杆，栅栏柱材和铁路枕木。