Steel products . bars with improved bond for concrete poles , supports for over head lines 钢制品.架空线路支架混凝土电杆用带改进粘附性的棒材
Specification and methods for establishing recommended design stresses for round timber construction poles 确定圆木电杆推荐应力的设计规范和方法
Overhead line private connection boxes ; disk for spacing of conductors in the roof pole stand tube 架空线路专用接线盒.屋顶电杆支架管中导线间距盘
Saddles , pole clamps stick clamps and accessories for live working iec 61236 : 1993 , modified ; german version en 61236 : 1995 带电作业用滑动座架,电杆夹及附件
Design improving program for earth wire pole hanging plate of overhead transmission line and its hanging metal parts 输电线路架空地线电杆挂线板及悬垂金具设计改进方案
Insulators and fittings for overhead lines arming for horizontal arrangement of wires on strutted wooden poles 架空线路用绝缘子和器材.金具.木电杆上的水平布线用带支撑的横担
Coal - tar creosote for the preservative treatment of piles , poles and timbers for marine , land and freshwater use 海上,陆地及淡水中用木桩,电杆和木材的防腐处理用煤柏油杂酚油规程
Specification for coal - tar creosote for the preservative treatment of piles , poles , and timbers of marine , land , and fresh water use 海上陆地及淡水中用木桩电杆和木材的防腐处理用煤焦油杂酚油规范
The boom bases are fitted with an electro - pneumatic system to enable the driver to lower or raise the booms from the driver s seat 电杆底座装设有电力一气动系统，方便车长于座位上控制电杆之升降。
The roof structure had to be strengthened to take the extra load from the boom equipment and the brake resistors 巴士车顶的结构须经过强化，以便能承受两枝电杆及连带设施，与刹车电阻器所带来的额外重量。
