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单选题
The water extractor is made from light alloy or fiberglass, and contains static swirl vanes and a water drain inside a body. Swirl vanes centrifuge the water droplets in the air to the inner surface of the water extractor body. The water collects at the lowest point of the body. It is then drained to ducts which leads to the water injectors which spray the water into the ram airflow. This helps the cooling capacity through the process of evaporation.
A
The water extractor is made from light alloy or fiberglass, and contains static swirl vanes and a water drain inside a body. Swirl vanes force the water droplets in the air to move to the inner surface of the water extractor body. The water accumulates at the lowest point of the body. It is then drained to ducts which leads to the water injectors which spray the water into the ram airflow. The evaporation process makes cooling happen.
B
The water extractor is made from light alloy or fiberglass, and contains static swirl vanes and a water drain inside a body. Swirl vanes force the water droplets in the air to move to the inner surface of the water extractor body. The water accumulates at the lowest point of the body. It is then drained to ducts which leads to the water injectors which spray the water into the ram airflow. This helps to cool more air.
C
The water extractor is made from light alloy or fiberglass, and contains static swirl vanes and a water drain inside a body. Swirl vanes centrifuge the water droplets in the air to the inner surface of the water extractor body. The water accumulates at the lowest point of the body. It is then drained to ducts which leads to the water injectors which spray the water into the ram airflow. This helps to cool more air.
答案解析
正确答案：B
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