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单语范例（未经PONS编辑处理）
When the regulator is open, the blower valve is closed; when the driver intends to close the regulator, he will first open the blower valve.
en.wikipedia.org With a convection blower, room air is circulated through the heat exchangers and directed into the living space.
en.wikipedia.org The blower typically continues to operate, ensuring the screen remains fully inflated.
en.wikipedia.org Even the blower could be replaced by first removing the radiator and working from the front.
en.wikipedia.org This was accomplished by using loop scavenging ports for both intake and exhaust along with a mechanical blower (supercharger).
en.wikipedia.org