起重机

• We need a hoist to lift the concrete blocks
  我们需要一台起重机来吊起混凝土块。
• We need a hoist to lift the concrete blocks
  起重机的长臂与我们的手臂功能相同。
• Cranes - crane driving manual - part 1 : general
  起重机起重机操作手册第1部分:总则
• General rules relative to safety of tower cranes
  有关塔式起重机安全性的一般规定
• Performance standard for overhead electric wire rope hoists
  桥式起重机性能标准
• Cranes ; rope pulleys ; dimensions of hubs and bearings
  起重机.绳轮.轴承和轮毂尺寸
• On a new - type container crane of river terminal
  内河码头集装箱起重机新机型的探讨
• Cast steel wheels and wrought steel wheels for cranes
  起重机用铸钢车轮和锻钢车轮
• Specification for insulated overhead travelling cranes
  绝缘桥式起重机.技术条件
• Standard specification for carbon steel crane rails
  起重机用碳钢轨条的标准规范