Insulators for low voltage power lines . part 2 : strain insulators for overhead power lines 低压电力线路绝缘子第2部分：架空电力线路用拉紧绝缘子
Power current overhead lines , rated voltage below 1 kv ; roof anchorage , compilation , piece parts 额定电压1000v以下架空电力线路用屋顶拉杆.零件汇编
Polymeric housed metal oxide surge arresters with series gap for a . c . electric power transmission line 交流输电线路用复合外套有串联间隙金属氧化物避雷器
It works near the surface of the road and transmits electromagnetic ( em ) wave to the pavement layers 近二十年发展起来的路用探地雷达就是这样一种公路质量检测设备。
Air regulating systems in mining ; wing air doors for haulage tracks ; double - wing type doors without pressure reduction 矿山空气调节系统.运输线路用空气风扇门,非减压双叶
So it is necessary to perfect asphalt concrete qualities by some technique measures such as adding fabric 因此通过一些技术措施，如掺加纤维等来改善沥青混合料的路用性能。
8 , 16 road connecting with the public security fence equipped with the corresponding connection plc - screw - type terminal 8 16路用安全栅配备对应plc连接用公共接线型螺丝端子型。
Research had proved that the both methods can efficiently improve the performance of the skidding resistant surface 研究表明，这两种方法都可以有效的改善抗滑表层混合料的路用性能。
Iowa department of transport , methods of test evaluation segregationin hot - mix asphalt pavement using a nuclear density gauge 沈金安.沥青及沥青混合料路用性能[ m ] ,北京:人民交通出版杜, 2001
Ductile iron pipes , fittings , accessories and their joints for water pipelines - requirements and test methods ; german version en 545 : 2002 水管路用延性铸铁管道配件附件及其接头.要求和试
