This round aluminum louver includes a water deflector and screen, making it ideal for situations where insects and rain are a problem.
这种铝制铝百叶窗，包括水导向挡板和筛网，因此非常适合使用在昆虫和雨水较多的地方。
The free water knockout has an inlet and deflector baffle near the top on one side and a gas outlet on the top.
游离水分离器在一侧的顶部附近有一个入口和折流板，并在顶部有一个气出口。
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