例句與造句

1. Standard specification for structural carbon steel plates of improved toughness
   增強(qiáng)韌性的結(jié)構(gòu)碳素鋼板的標(biāo)準(zhǔn)規(guī)范
2. Structural carbon steel
   結(jié)構(gòu)碳鋼
3. It's difficult to find structural carbon steel in a sentence. 用structural carbon steel造句挺難的