rack steel structure的用法和樣例：
例句
- Upright protectors and column guards safeguard the stability of the structure during fork truck picking and replenishing operations.
支柱防撞護腳及橫梁防護體能保證叉車(chē)作業(yè)時(shí)貨架結構的穩定。 - Unfortunately, it's all too easy to rack up debts on your card account with little to show for the money you've spent.
可惜這太容易了貨架帳戶(hù)卡債你很少來(lái)證明你的錢(qián)花。
