楼主钩的西瓜好漂亮哟，小包包也不错哦！
所有的起重机都应当有主钩的起重能力指示器和扒杆角度指示器，并且起重机司机要看得见。
All cranes will be equipped with a functional weight indicator on the main hoist and a boom Angle indicator, both visible by the operator.
通过模态分析发现，浮吊结构的振型主要表现为主钩钢丝绳-吊重系统摆动和臂架振动，振动频率都很低；
Through the modal analysis, it is found that main vibration modes of floating crane structure are swing of rope-load system and vibration of boom, and the vibration frequencies are low;
介绍了可编程控制器PLC在钛冶炼生产中天车上的应用，主要阐述了利用PLC控制天车主钩的上升下降。
The paper introduces the application of PLC in titanium smelting crane, in particular, the rising up and descending down of main hook by PLc.
介绍了可编程控制器PLC在钛冶炼生产中天车上的应用，主要阐述了利用PLC控制天车主钩的上升下降。
The paper introduces the application of PLC in titanium smelting crane, in particular, the rising up and descending down of main hook by PLc.
应用推荐