arcs

• High alumina refractory bricks for electric arc furnace roofs
  炼钢电炉顶用高铝砖
• The circular - arc - shaped gallery plaza in guanyintang
  圆弧形的观音堂画廊广场。
• The sun appears to move in an arc across the sky
  太阳看起来在天空以弧线运行。
• Safety requirements for portable arc welding transformers
  小型弧焊变压器安全要求
• Arc welding equipment - part 11 : electrode holders
  弧焊设备.第11部分:电极握杆
• Carbon steel flux cored wires for arc welding in shipbuilding
  船用碳钢药芯焊丝
• Construction technology for big arc projecting roof eaves
  屋面圆弧大挑檐施工技术
• Design and practice of teching software based on arcs
  模型的教学软件设计与实践
• Arc welding equipment - part 5 : wire feeders
  电弧焊设备.第5部分:焊丝进料装置
• Test methods for colour fastness to xenon arc lamp light
  氙弧灯光色牢度的试验方法