巫娜：那是说，整个地区没有总管输送的水、气和污水处理。
Una: so that means this area is without mains water electricity gas and sewage disposal.
控制阀在污水缸变满时启动泵，并把污水抽进压力总管道。
The controller turns on the pump when the sewage tank is full and pumps the sewage into a force main.
控制阀在污水缸变满时启动泵，并把污水抽进压力总管道。
The controller turns on the pump when the sewage tank is full and pumps the sewage into a force main.
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