The louver Windows may be closed if necessary to allow air conditioning, but in practice, air conditioning is rarely required and the breezes move through the house at all times.
当必须打开空调时，百叶窗可以关闭，但实际上几乎不需要开空调，微风每时每刻都会穿过房间。
2
The louver is in fluid communication with the air outlet passageway and includes a cover providing an aesthetic surface configured to face outward from front portion in the closed position.
A louver provides the other of the air inlet and outlet passageways, and the louver has a third height at least substantially the same as the first height.