Air Filter Institute

• 空气过滤学会

Air Filter Institute的用法和样例：

例句

1. Even the air filtered down greenly through the leaves.
   即使是空气过滤下跌格林利通过树叶。
2. An air filter system eliminates any dust that might clog up the movements.
   空气过滤系统可以消除空气中的尘埃，以免阻塞机芯的运作。