介绍了施工中吊车起吊式和人字倒落式抱杆组立混凝土电杆的方法以及运行中混凝土电杆的维护。
The methods of erecting concrete poles, by means of crane hoisting type and falling down type were emphasized.
介绍了施工中吊车起吊式和人字倒落式抱杆组立混凝土电杆的方法以及运行中混凝土电杆的维护。
The methods of erecting concrete poles, by means of crane hoisting type and falling down type were emphasized.
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