防

• Standard guide for labeling of uv - protective textiles
  防紫外线织物标签的标准指南
• Application on infrared detector in preventing fire
  红外探测仪在防灭火中的应用
• On lu dafang in yuanyou stage in northern song dynasty
  试论北宋元?时期的吕大防
• Public urged to guard against bacillary dysentery
  生署提醒市民慎防杆菌性痢疾感染
• Lift bop stack and replace wellhead connector ax ring
  吊起防喷器组并更换连接器
• Check and reset crown - saver on every tour
  每个班都要检查并重新调整天车防碰装置
• Reduced pressure detector assembly backflow preventer
  减压检测器组合防回流装置