普通类型的货物装卸设备在应用上受到限制,再也不容许在回转时上下波动,因为货物必须“定点着落”在船舱内或码头上,所以应该发展单杆的货物装卸设备,而甲板吊车的应用范围正在不断扩大。与实际的起重设备相反,起货绞车和甲板吊车的控制函数和驱动设备近来已取得很大进展,以节约时间,劳动力和重量。 Conventional types of cargo handling equipment are limited in application and are no longer allowed to fluctuate on rotation as the cargo must be “spot-landed” in the hold or at the wharf so that a single-pole cargo handling equipment should be developed while the deck crane’s The scope of application is constantly expanding. In contrast to actual hoisting equipment, control functions and drive equipment for winch and deck cranes have made great strides recently to save time, labor and weight.