It was very basic with no sewerage system and the effluent was collected daily.
这是非常基本的生活，没有污水收集系统和每日会收集污水。
Through the introduction of vacuum sewerage system, the new design idea was given.
通过对真空排水系统的介绍，给大家一个全新的设计思路。
Through the introduction of vacuum sewerage system, the new design idea was given.
通过对真空排水系统的介绍，给大家一个全新的设计思路。
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