beadblast /ˈbiːdˌblɑːst/

• 1. 

  N a jet of small glass beads blown from a nozzle under air or steam pressure 在大气或蒸汽压力下喷出的小玻璃碎片喷射流

• 2. 

  V to clean or treat (a surface) with a beadblast 用碎玻璃片喷射流清洁或处理