The filter pressure drainage and drainage are two ways to manually drain. Manual drainage when the water level below the level reached before the filter must be excluded.

本过滤器排水有压差排水与手动排水二种方式。手动排水时当水位达到滤芯下方水平之前必须排除。

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The infinity pool overflow drainage system allows for total integration at ground level and provides certain spirituality.

无限的水池的排水系统与地面融合在一起，提供特定的精神享受。

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Roads should be built above flood level and have adequate drainage.

道路应当修建于洪水线之上，并且应设有充足的排水系统。

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The project is a partnership of the Environment Agency, Huntingdonshire District Council, Middle Level Commissioners, which is a group responsible for land drainage, Natural England and the Wildlife Trust.

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