crane

• Machining of main chord of tower crane by c630 lathe
  630车床成组加工塔机主弦杆
• Stephen crane and naturalism in american literature
  克莱恩与美国文学的自然主义
• General rules relative to safety of tower cranes
  有关塔式起重机安全性的一般规定
• 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
• How do you do , mr . crane . very nice to meet you
  您好，克莱恩先生。很高兴见到您。
• 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
• To raise or lower ( the boom of a crane or derrick
  起重吊杆是一种最简单的起重机。