If your smoke detector is working properly, the red light should be on.
如果你的烟雾探测器运作正常，红灯应当亮起。
A smoke detector is on the ceiling in your room.
你房间的天花板上有一个烟雾探测器。
Smoke detector is on the ceiling in your room.
烟雾报警器在你房间的天花板上。
Width of detector has no influence on the DSCTA image quality.
探测器的使用宽度不影响DSCTA的图像质量。
Width of detector has no influence on the DSCTA image quality.
探测器的使用宽度不影响DSCTA的图像质量。
应用推荐