释义 |
commercial steel 基本例句 型钢,商品钢材 The roof is formed from standard steel sections and recyclable pre-cast concrete units.屋顶是形成从标准型钢可回收和预制混凝土组件。 This paper presents an automatic stowing,packing and gathering system for a section steel tandem rolling line.介绍一种用于精整工艺的自动化型钢码垛包装收集系统。 |