blackout area的用法和樣例：
例句
- The design of the range finder is targeted on high precision and little blind area.
超聲測距儀錶的設計以達到高精度小盲區為目的。 - The comprehensive treatment of the moving spatial blind area in urban crime is really a effective way for the urban anticrime in public traffic means.
移動空間是一種很特殊的空間實體，存在許多犯罪盲區的致盲因素。
