It looked there like a network of liquid threads which doubtless reached the river by some underground drain.
从这里看起来象是一片水网，无疑地，这些水都从地下泉眼直通到河里。
The whole city drainage system program is as follows: rain water wells road, clay and drain well across the street and drainage inspection wells and underground drainage main lines.
市政整体排水系统程序如下：路面雨水→雨水井→沉泥井→过街排水管→排水检查井→地下排水主干线。
Underground principal drain pump is one of the devices that consume the most power in coal mine.
井下主排泵是煤矿耗电量最多的设备之一。
Underground principal drain pump is one of the devices that consume the most power in coal mine.
井下主排泵是煤矿耗电量最多的设备之一。
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