halogen

• Dentistry - powered polymerization activators - quartz tungsten halogen lamps
  牙科学.动力聚合活化剂.石英钨卤素灯
• Halogen - free sheathing material
  无卤素护套材料
• All the halogens require one more electron to complete a p - shell
  所有的卤素都要求得到一个额外的电子来填满p壳层。
• Mr16 reflector halogen lamps
  Mr16卤素冷反射灯
• Cold - light source halogen bulb
  冷光源卤素灯泡
• Open the rear cover of the headlamp and pull the installed halogen lamp out
  打开照明灯后盖，取出原有的卤素灯泡。
• Halogen and phosphorous - free
  不含卤素及红磷
• Halogen and phosphorous free
  不含卤素及红磷
• Testing of cables , wires and flexible cords ; non - halogen verification
  电缆绝缘导线和软线的检验.第815部分:无卤素验证