carbon constructional quality steel improved carbon structural steel high-quality carbon structural steel
carbon constructional quality steel
improved carbon structural steel
优质碳素钢用英文怎么说
优质碳钢用英文怎么说
优质种子用英文怎么说
优质稻用英文怎么说
优质稻米用英文怎么说
英语词典收录了最新的汉英词典和英汉词典,总共有200多万个词条,词库仍在不断更新中。